Multi-active region AlGaN UV LEDs with transparent tunnel junctions-Reference-Cited by-同舟云学术

Multi-active region AlGaN UV LEDs with transparent tunnel junctions

Published:2023-08-01 Issue:8 Volume:16 Page:082001
ISSN:1882-0778
Container-title:Applied Physics Express
language:
Short-container-title:Appl. Phys. Express

Author:

Dominic Merwin Xavier Agnes Maneesha,Ghosh Arnob,Rahman Sheikh Ifatur^ORCID,Allerman Andrew,Verma Darpan,Myers Roberto C.,Arafin Shamsul^ORCID,Rajan Siddharth^ORCID

Abstract

Abstract In this work, we demonstrate two-junction UV LEDs enabled by transparent tunnel junctions. Low voltage-drop tunnel junctions were realized in Al0.3Ga0.7N layers through a combination of high doping and compositional grading. Capacitance and current–voltage measurements confirmed the operation of two junctions in series. The voltage drop of the two-junction LED was 2.1 times that of an equivalent single-junction LED, and the two-junction LED had higher external quantum efficiency (147%) than the single junction.

Funder

National Science Foundation

Publisher

IOP Publishing

Subject

General Physics and Astronomy,General Engineering

Link

https://iopscience.iop.org/article/10.35848/1882-0786/acea1b/pdf

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