Abstract

Polyacrylonitrile electrospinning nanofiber film was introduced into a light emitting diode (LED) lamp to exploit the strong reflective and scattering effects. The light extraction mechanism was studied systematically for three different electrospinning types in three different types of LED lamps. For the all-electrospinning types, the luminous efficacy increased for the white LED, outwards remote phosphor layer, and inwards remote phosphor layer lamps by 10.98, 16.97, and 18.35%, respectively, compared with the reference lamp. Lamps with stronger backscatter had larger luminous efficacy enhancements. The reflector-electrospinning type helped redirect lights with large emission angles. The substrate-electrospinning type was beneficial for recycling the total interior reflection lights and increasing the yellow to blue ratio. Additionally, the all-electrospinning white LED lamps remains 97.89% luminous flux after a 96-hour aging process. Electrospinning fiber films are favorable luminous efficacy enhancers for the future generation of LED lamps.

© 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

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  1. J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
    [Crossref]
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  3. Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).
  4. H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
    [Crossref] [PubMed]
  5. M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
    [Crossref]
  6. X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
    [Crossref]
  7. P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
    [Crossref] [PubMed]
  8. H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
    [Crossref]
  9. Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
    [Crossref]
  10. J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).
  11. S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
    [Crossref]
  12. Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
    [Crossref] [PubMed]
  13. J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
    [Crossref]
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    [Crossref]
  17. A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
    [Crossref] [PubMed]
  18. C. H. Hung and W. F. Leung, “Filtration of nano-aerosol using nanofiber filter under low Peclet number and transitional flow regime,” Separ. Purif. Tech. 79(1), 34–42 (2011).
    [Crossref]
  19. M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
    [Crossref] [PubMed]
  20. Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
    [Crossref]
  21. C. C. Chang, C. M. Huang, Y. H. Chang, and C. Kuo, “Enhancement of light scattering and photoluminescence in electrospun polymer nanofibers,” Opt. Express 18(S2Suppl 2), A174–A184 (2010).
    [Crossref] [PubMed]
  22. Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
    [Crossref] [PubMed]
  23. C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
    [Crossref]
  24. H. C. Chen, J. Y. Lin, and H. Y. Chiu, “Rectangular illumination using a secondary optics with cylindrical lens for LED street light,” Opt. Express 21(3), 3201–3212 (2013).
    [Crossref] [PubMed]
  25. H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
    [Crossref]
  26. J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
    [Crossref]
  27. S. P. Ying and H. Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
    [Crossref]
  28. Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
    [Crossref]

2018 (1)

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

2017 (4)

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

2016 (3)

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

S. P. Ying and H. Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

2015 (3)

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

2014 (3)

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

2013 (4)

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

H. C. Chen, J. Y. Lin, and H. Y. Chiu, “Rectangular illumination using a secondary optics with cylindrical lens for LED street light,” Opt. Express 21(3), 3201–3212 (2013).
[Crossref] [PubMed]

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
[Crossref]

2012 (1)

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

2011 (3)

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

C. H. Hung and W. F. Leung, “Filtration of nano-aerosol using nanofiber filter under low Peclet number and transitional flow regime,” Separ. Purif. Tech. 79(1), 34–42 (2011).
[Crossref]

2010 (3)

N. Bhardwaj and S. C. Kundu, “Electrospinning: A fascinating fiber fabrication technique,” Biotechnol. Adv. 28(3), 325–347 (2010).
[Crossref] [PubMed]

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

C. C. Chang, C. M. Huang, Y. H. Chang, and C. Kuo, “Enhancement of light scattering and photoluminescence in electrospun polymer nanofibers,” Opt. Express 18(S2Suppl 2), A174–A184 (2010).
[Crossref] [PubMed]

2008 (1)

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

2007 (1)

B. D’Andrade, “Lighting: White phosphorescent LEDs offer efficient answer,” Nat. Photonics 1(1), 33–34 (2007).
[Crossref]

2006 (1)

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Abdullah, M.

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

An, S.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Arumugam, P. U.

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

Bhardwaj, N.

N. Bhardwaj and S. C. Kundu, “Electrospinning: A fascinating fiber fabrication technique,” Biotechnol. Adv. 28(3), 325–347 (2010).
[Crossref] [PubMed]

Boudriot, U.

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Chang, C. C.

Chang, Y. H.

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

C. C. Chang, C. M. Huang, Y. H. Chang, and C. Kuo, “Enhancement of light scattering and photoluminescence in electrospun polymer nanofibers,” Opt. Express 18(S2Suppl 2), A174–A184 (2010).
[Crossref] [PubMed]

Chen, H. C.

Chen, I.

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

Chen, J.

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Chen, M.

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Chen, Y. L.

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

Cheng, Q.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Chien, H. Y.

S. P. Ying and H. Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

Chiu, H. Y.

Cho, J.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
[Crossref]

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

D’Andrade, B.

B. D’Andrade, “Lighting: White phosphorescent LEDs offer efficient answer,” Nat. Photonics 1(1), 33–34 (2007).
[Crossref]

Dersch, R.

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Ding, X.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Ding, X. R.

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Fred Schubert, E.

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Greiner, A.

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Han, M.

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

He, Z. H.

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Hong, H. G.

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

Hu, J.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Huang, C. M.

Huang, J. L.

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

Huang, S.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Hung, C. H.

C. H. Hung and W. F. Leung, “Filtration of nano-aerosol using nanofiber filter under low Peclet number and transitional flow regime,” Separ. Purif. Tech. 79(1), 34–42 (2011).
[Crossref]

Hwang, J. H.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Iskandar, F.

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

Jiang, L.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Jo, H. S.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Ju, B. K.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Jung, S. G.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Kim, H. J.

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

Kim, J. K.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
[Crossref]

Kim, K. N.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Kim, K. S.

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Kim, Y. J.

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

Koehne, J. E.

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

Kundu, S. C.

N. Bhardwaj and S. C. Kundu, “Electrospinning: A fascinating fiber fabrication technique,” Biotechnol. Adv. 28(3), 325–347 (2010).
[Crossref] [PubMed]

Kuo, C.

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

C. C. Chang, C. M. Huang, Y. H. Chang, and C. Kuo, “Enhancement of light scattering and photoluminescence in electrospun polymer nanofibers,” Opt. Express 18(S2Suppl 2), A174–A184 (2010).
[Crossref] [PubMed]

Lai, W.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Lee, H. J.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Lei, X.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

Leung, W. F.

C. H. Hung and W. F. Leung, “Filtration of nano-aerosol using nanofiber filter under low Peclet number and transitional flow regime,” Separ. Purif. Tech. 79(1), 34–42 (2011).
[Crossref]

Li, C.

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Li, J.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Li, J. S.

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Li, L.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

Li, M.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Li, Z.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

Li, Z. T.

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Liang, G.

Lin, J. Y.

Lin, L.

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Liu, D.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Liu, S.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

Luo, H.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Luo, X.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

Mahapatra, A.

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Mao, P.

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Meyyappan, M.

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

Munir, M. M.

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

Okuyama, K.

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

Park, C. H.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Park, Y.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

Park, Y. J.

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Park, Y. W.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Periyakaruppan, A.

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

Qiu, X.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Rao, L.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

Rao, L. S.

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Schubert, E. F.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
[Crossref]

Shi, C.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Shi, T.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Shim, Y. S.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Shin, M. H.

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

Sone, C.

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Song, Y.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Steinhart, M.

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Sun, D.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Tang, Y.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Tang, Z.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Wang, G.

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Wang, H.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Wang, H. Y.

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Wang, Q. H.

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

Wendorff, J. H.

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Wu, D.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Xi, S.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Xi, Y. A.

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Xie, Y.

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

Ye, C.

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

Ying, S. P.

S. P. Ying and H. Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

Yoon, S. S.

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

Yu, B.

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

Y. Tang, G. Liang, J. Chen, S. Yu, Z. Li, L. Rao, and B. Yu, “Highly reflective nanofiber films based on electrospinning and their application on color uniformity and luminous efficacy improvement of white light-emitting diodes,” Opt. Express 25(17), 20598–20611 (2017).
[Crossref] [PubMed]

Z. Li, S. Yu, L. Lin, Y. Tang, X. Ding, W. Yuan, and B. Yu, “Energy feedback freeform lenses for uniform illumination of extended light source LEDs,” Appl. Opt. 55(36), 10375–10381 (2016).
[Crossref] [PubMed]

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Yu, B. H.

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Yu, S.

Yu, S. D.

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

Yu, X.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

Yuan, W.

Yun, K. M.

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

Zhan, Z.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Zhang, L.

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

Zhang, P.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Zhao, J.

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Zheng, H.

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

ACS Appl. Mater. Interfaces (2)

H. J. Lee, S. An, J. H. Hwang, S. G. Jung, H. S. Jo, K. N. Kim, Y. S. Shim, C. H. Park, S. S. Yoon, Y. W. Park, and B. K. Ju, “Novel composite layer based on electrospun polymer nanofibers for efficient light scattering,” ACS Appl. Mater. Interfaces 7(1), 68–74 (2015).
[Crossref] [PubMed]

P. Mao, A. Mahapatra, J. Chen, M. Chen, G. Wang, and M. Han, “Fabrication of polystyrene/ZnO micronano hierarchical structure applied for light extraction of light-emitting devices,” ACS Appl. Mater. Interfaces 7(34), 19179–19188 (2015).
[Crossref] [PubMed]

Appl. Opt. (1)

Appl. Phys. Express (1)

M. H. Shin, H. G. Hong, H. J. Kim, and Y. J. Kim, “Enhancement of optical extraction efficiency in white LED package with quantum dot phosphors and air-gap structure,” Appl. Phys. Express 7(5), 052101 (2014).
[Crossref]

Appl. Phys. Lett. (1)

H. Luo, K. S. Kim, Y. A. Xi, E. Fred Schubert, J. Cho, C. Sone, and Y. J. Park, “Trapped whispering-gallery optical modes in white light-emitting diode lamps with remote phosphor,” Appl. Phys. Lett. 89(4), 216–221 (2006).
[Crossref]

Biosens. Bioelectron. (1)

A. Periyakaruppan, P. U. Arumugam, M. Meyyappan, and J. E. Koehne, “Detection of ricin using a carbon nanofiber based biosensor,” Biosens. Bioelectron. 28(1), 428–433 (2011).
[Crossref] [PubMed]

Biotechnol. Adv. (1)

N. Bhardwaj and S. C. Kundu, “Electrospinning: A fascinating fiber fabrication technique,” Biotechnol. Adv. 28(3), 325–347 (2010).
[Crossref] [PubMed]

Chin. Opt. Lett. (1)

Z. T. Li, H. Y. Wang, B. H. Yu, X. R. Ding, and Y. Tang, “High-efficiency LED COB device combined diced V-shaped pattern and remote phosphor,” Chin. Opt. Lett. 15(4), 56–59 (2017).

Electrochim. Acta (1)

D. Wu, C. Shi, S. Huang, X. Qiu, H. Wang, Z. Zhan, P. Zhang, J. Zhao, D. Sun, and L. Lin, “Electrospun nanofibers for sandwiched polyimide/poly (vinylidene fluoride)/polyimide separators with the thermal shutdown function,” Electrochim. Acta 176, 727–734 (2015).
[Crossref]

Energy Environ. Sci. (1)

C. Ye, M. Li, J. Hu, Q. Cheng, L. Jiang, and Y. Song, “Highly reflective superhydrophobic white coating inspired by poplar leaf hairs toward an effective “cool roof”,” Energy Environ. Sci. 4(9), 3364–3367 (2011).
[Crossref]

IEEE Electron Device Lett. (1)

H. Zheng, L. Li, X. Lei, X. Yu, S. Liu, and X. Luo, “Optical performance enhancement for chip-on-board packaging LEDs by adding TiO2/silicone encapsulation layer,” IEEE Electron Device Lett. 35(10), 1046–1048 (2014).
[Crossref]

IEEE Trans. Electron Dev. (5)

Z. T. Li, Q. H. Wang, Y. Tang, C. Li, X. R. Ding, and Z. H. He, “Light extraction improvement for LED COB devices by introducing a patterned leadframe substrate configuration,” IEEE Trans. Electron Dev. 60(4), 1397–1403 (2013).
[Crossref]

X. Ding, Y. Tang, Z. Li, J. Li, Y. Xie, and L. Lin, “Multichip LED modules with V-Groove surfaces for light extraction efficiency enhancements considering roughness scattering,” IEEE Trans. Electron Dev. 64(1), 182–188 (2017).
[Crossref]

J. Li, Y. Tang, Z. Li, X. Ding, L. Rao, and B. Yu, “Effect of quantum dot scattering and absorption on the optical performance of white light-emitting diodes,” IEEE Trans. Electron Dev. 65 (7), 2877–2884 (2018).
[Crossref]

S. P. Ying and H. Y. Chien, “Effect of reassembled remote phosphor geometry on the luminous efficiency and spectra of white light-emitting diodes with excellent color rendering property,” IEEE Trans. Electron Dev. 63(3), 1117–1121 (2016).
[Crossref]

Y. Tang, Z. Li, Z. T. Li, J. S. Li, S. D. Yu, and L. S. Rao, “Enhancement of luminous efficiency and uniformity of CCT for quantum dot-converted LEDs by incorporating with ZnO nanoparticles,” IEEE Trans. Electron Dev. 65(1), 158–164 (2017).
[Crossref]

J. Phys. Chem. C (1)

Y. L. Chen, Y. H. Chang, J. L. Huang, I. Chen, and C. Kuo, “Light scattering and enhanced photoactivities of electrospun titania nanofibers,” J. Phys. Chem. C 116(5), 3857–3865 (2012).
[Crossref]

Jpn. J. Appl. Phys. (1)

J. K. Kim, H. Luo, E. F. Schubert, J. Cho, C. Sone, and Y. Park, “Strongly enhanced phosphor efficiency in GaInN white light-emitting diodes using remote phosphor configuration and diffuse reflector cup,” Jpn. J. Appl. Phys. 44(20–23), L649–L651 (2014).

Laser Photonics Rev. (1)

J. Cho, E. F. Schubert, and J. K. Kim, “Efficiency droop in light‐emitting diodes: challenges and countermeasures,” Laser Photonics Rev. 7(3), 408–421 (2013).
[Crossref]

Nanotechnology (1)

M. M. Munir, F. Iskandar, K. M. Yun, K. Okuyama, and M. Abdullah, “Optical and electrical properties of indium tin oxide nanofibers prepared by electrospinning,” Nanotechnology 19(14), 145603 (2008).
[Crossref] [PubMed]

Nat. Photonics (1)

B. D’Andrade, “Lighting: White phosphorescent LEDs offer efficient answer,” Nat. Photonics 1(1), 33–34 (2007).
[Crossref]

Opt. Express (3)

Polym. Adv. Technol. (1)

R. Dersch, M. Steinhart, U. Boudriot, A. Greiner, and J. H. Wendorff, “Nanoprocessing of polymers: applications in medicine, sensors, catalysis, photonics,” Polym. Adv. Technol. 16(2–3), 276–282 (2010).

Separ. Purif. Tech. (1)

C. H. Hung and W. F. Leung, “Filtration of nano-aerosol using nanofiber filter under low Peclet number and transitional flow regime,” Separ. Purif. Tech. 79(1), 34–42 (2011).
[Crossref]

Solid-State Electron. (1)

J. Li, Z. Li, Z. Li, Y. Tang, X. Ding, and B. Yu, “Improvement in optical performance and color uniformity by optimizing the remote phosphor caps geometry for chip-on-board light emitting diodes,” Solid-State Electron. 126, 36–45 (2016).
[Crossref]

Thin Solid Films (1)

S. Xi, T. Shi, L. Zhang, D. Liu, W. Lai, and Z. Tang, “Highly visible-light reflective SiO x N y nanowires for bright-white reflector applications,” Thin Solid Films 529(2), 115–118 (2013).
[Crossref]

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Figures (7)
Fig. 1
Fig. 1 Schematic of the electrospinning process and lamp.

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Fig. 2
Fig. 2 (a) Film thickness and reflectance (450 nm) of the PAN electrospinning NF films with different deposition times; the red and green dashed lines represent the reflectances (450 nm) of the substrate and reflector, respectively. (b) Light intensity distribution of the substrate, reflector, and PAN electrospinning NF film for a 120-min deposition time. (c) High resolution SEM image of the 120-min-deposition-time PAN electrospinning NF film.

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Fig. 3
Fig. 3 (a) Radiant flux of four types of blue LED lamps under a driving current from 75 to 750 mA; the inset shows the average radiant flux increases of the R-ES, S-ES, and A-ES lamps, the inset shows the average radiant flux increase compared to the reference lamp. The luminous efficacy of the electrospinning-introduced to the (b) white light LED, (c) ORPL, and (d) IRPL lamps under a driving current from 75 to 750 mA.

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Fig. 4
Fig. 4 Radiant flux of three types of lamps under a 300 mA driving current;

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Fig. 5
Fig. 5 Emission spectra of the four electrospinning types of (a) white LED, (b) ORPL, and (c) IRPL lamps under a 300-mA driving current.

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Fig. 6
Fig. 6 (a) Blue and yellow light increase ratios of three types of lamps. (b) YBR of three types of lamps.

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Fig. 7
Fig. 7 Luminous flux change of the A-E white LED lamp under a 96-hour aging process; inset shows the top view of the lamp under operation.

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Tables (1)

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Table 1 CCT, luminous efficacy, and luminous efficacy increase compared to the reference lamp for the electrospinning-introduced white LED, ORPL, and IRPL lamps at a 300 mA driving current.

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