Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
Journal Home About Issues in Progress Current Issue All Issues Early Posting

Plasmonic-enhanced efficiency of AlGaN-based deep ultraviolet LED by graphene/Al nanoparticles/graphene hybrid structure

Nianlei Jiang, Yang Chen, Bingchen Lv, Ke Jiang, Shanli Zhang, Shunpeng Lu, Shaojuan Li, Tao Tao, Xiaojuan Sun, and Dabing Li

Not Accessible

Your library or personal account may give you access

Abstract

The AlGaN-based deep ultraviolet light-emitting diode (DUV LED) has advantages of environmentally friendly materials, tunable emission wavelength, and easy miniaturization. However, the light extraction efficiency (LEE) of an AlGaN-based DUV LED is low, which hinders its applications. Here, we design a graphene/Al nanoparticles/graphene (Gra/Al NPs/Gra) hybrid plasmonic structure, where the strong resonant coupling of local surface plasmons (LSPs) induces a 2.9-times enhancement for the LEE of the DUV LED according to the photoluminescence (PL). The dewetting of Al NPs on a graphene layer by annealing is optimized, resulting in better formation and uniform distribution. The near-field coupling of Gra/Al NPs/Gra is enhanced via charge transfer among graphene and Al NPs. In addition, the skin depth increment results in more excitons being coupled out of multiple quantum wells (MQWs). An enhanced mechanism is proposed, revealing that the Gra/metal NPs/Gra offers a reliable strategy for improving the optoelectronic device performance, which might trigger the advances of LEDs and lasers with high brightness and power density.

© 2023 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Plasmon-enhanced deep ultraviolet Micro-LED arrays for solar-blind communications

Siyao Zhang, Rui He, Yiwei Duo, Renfeng Chen, Ligang Wang, Junxi Wang, and Tongbo Wei
Opt. Lett. 48(15) 3841-3844 (2023)

Enhanced performance of 275-nm AlGaN-based deep-ultraviolet LEDs via internal-roughed sapphire and SiO2-antireflection film

Yinzuo Qian, Zhefu Liao, Zhenxing Lv, Shengli Qi, and Shengjun Zhou
Opt. Lett. 48(4) 1072-1075 (2023)

Localized surface plasmon-enhanced light emission using platinum nanorings in deep ultraviolet-emitting AlGaN quantum wells

Hee Woong Shin, Kyung Rock Son, and Tae Geun Kim
Opt. Lett. 41(1) 88-91 (2016)

View More...

Supplementary Material (1)

NameDescription
Supplement 1       Experimental details and supplemental figures.

Data availability

The data that support the findings of this study are available from the corresponding author upon reasonable request.

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Figures (4)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Equations (3)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters
Select Topics Cancel
Top
       
© Copyright 2024 | Optica Publishing Group. All rights reserved, including rights for text and data mining and training of artificial technologies or similar technologies.
Privacy | Terms of Use