Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group

Effective integration of a MOSFET phototransistor to a GaN LED for UV sensing

Not Accessible

Your library or personal account may give you access

Abstract

In this Letter, we report an effective monolithic integration of a metal oxide semiconductor field effect (MOSFET) phototransistor (PT) and a light-emitting diode (LED) on a GaN-on-Si LED epitaxial (epi) wafer. Avoiding additional growth or Si diffusion, the PT was directly fabricated on the LED epi layer, providing a cost-effective and facile method. As a driver, the PT could modulate both peak value of the light intensity and output current of the integrated LED. As an ultraviolet (UV) detector, our PT showed sufficient responsivity. It was found that the gate-voltage-dependent photocurrent-response of the device had a shorter response time, and a higher responsivity was obtained at a higher gate-voltage bias. The device demonstrated a switching effect that the photoinduced current from the PT drove the LED when the UV lamp was turned on, whereas the photoinduced current stopped driving upon powering off the UV lamp. The experiment proved that the integrated device working as a UV detector exhibited a fast response time and a longstanding stability. We anticipate that such an approach could have potential applications for UV light detection and visible light communication (VLC).

© 2022 Optica Publishing Group

Full Article  |  PDF Article
More Like This
Monolithically integrated voltage-controlled MOSFET-LED device based on a GaN-on-silicon LED epitaxial wafer

Jiabin Yan, Bolun Jia, and Yongjin Wang
Opt. Lett. 46(4) 745-748 (2021)

Monolithic integration of GaN-based phototransistors and light-emitting diodes

Pinghui S. Yeh, Yu-Chieh Chiu, Tsung-Che Wu, Yan-Xiang Chen, Tzu-Hsun Wang, and Tzu-Chieh Chou
Opt. Express 27(21) 29854-29862 (2019)

Monolithic integration of GaN-based light-emitting diodes and metal-oxide-semiconductor field-effect transistors

Ya-Ju Lee, Zu-Po Yang, Pin-Guang Chen, Yung-An Hsieh, Yung-Chi Yao, Ming-Han Liao, Min-Hung Lee, Mei-Tan Wang, and Jung-Min Hwang
Opt. Express 22(S6) A1589-A1595 (2014)

Supplementary Material (1)

NameDescription
Supplement 1       Supplemental information.

Data availability

Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors 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 (5)

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

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved