Recent advances in optoelectronic and microelectronic devices based on ultrawide-bandgap semiconductors

J Yang, K Liu, X Chen, D Shen - Progress in Quantum Electronics, 2022 - Elsevier
Owing to their novel physical properties, semiconductors have penetrated almost every
corner of the contemporary industrial system. Nowadays, semiconductor materials and their …

Application of patterned sapphire substrate for III-nitride light-emitting diodes

S Zhou, X Zhao, P Du, Z Zhang, X Liu, S Liu, LJ Guo - Nanoscale, 2022 - pubs.rsc.org
Recent decades have witnessed flourishing prosperity of III-nitride emitters in solid-state
lighting and high-resolution displays. As one of the widely used substrates, sapphire shows …

Compositionally graded III-nitride alloys: Building blocks for efficient ultraviolet optoelectronics and power electronics

H Zhang, C Huang, K Song, H Yu, C **ng… - Reports on Progress …, 2021 - iopscience.iop.org
Wide bandgap aluminum gallium nitride (AlGaN) semiconductor alloys have established
themselves as the key materials for building ultraviolet (UV) optoelectronic and power …

AlGaN-based deep ultraviolet micro-LED emitting at 275 nm

H Yu, MH Memon, D Wang, Z Ren, H Zhang… - Optics Letters, 2021 - opg.optica.org
The investigation of electrical and optical properties of micro-scale AlGaN deep ultraviolet
(DUV) light-emitting diodes (LEDs) emitting at∼ 275nm was carried out, with an emphasis …

Boosted ultraviolet electroluminescence of InGaN/AlGaN quantum structures grown on high-index contrast patterned sapphire with silica array

H Hu, B Tang, H Wan, H Sun, S Zhou, J Dai, C Chen… - Nano Energy, 2020 - Elsevier
Epitaxially grown high crystalline quality InGaN/AlGaN multiple quantum structures on
patterned sapphire with silica array (PSSA) have been successfully demonstrated. In …

Achieving 9.6% efficiency in 304 nm p-AlGaN UVB LED via increasing the holes injection and light reflectance

MA Khan, N Maeda, J Yun, M Jo, Y Yamada… - Scientific reports, 2022 - nature.com
Crystal growth of eco-friendly, ultrawide bandgap aluminium gallium nitride (AlGaN)
semiconductor-based ultraviolet-B (UVB) light-emitting diodes (LEDs) hold the potential to …

Demonstration of AlGaN/GaN-based ultraviolet phototransistor with a record high responsivity over 3.6× 107 A/W

H Zhang, F Liang, K Song, C **ng, D Wang… - Applied Physics …, 2021 - pubs.aip.org
In this work, we demonstrate a high-performance ultraviolet phototransistor (UVPT) based
on the AlGaN/GaN high-electron mobility transistor (HEMT) configuration. When the device …

Ultraviolet optoelectronic devices based on AlGaN-SiC platform: Towards monolithic photonics integration system

C Huang, H Zhang, H Sun - Nano energy, 2020 - Elsevier
Rapid advancement of wide-bandgap AlGaN semiconductor materials offers tremendous
opportunities in the field of ultraviolet (UV) optoelectronics for a wide range of advanced …

Band engineering of III-nitride-based deep-ultraviolet light-emitting diodes: a review

Z Ren, H Yu, Z Liu, D Wang, C **ng… - Journal of Physics D …, 2019 - iopscience.iop.org
III-nitride deep ultraviolet (DUV) light-emitting diodes (LEDs) have been identified as
promising candidates for energy-efficient, environment-friendly and robust UV lighting …

Perspectives on UVC LED: Its progress and application

TC Hsu, YT Teng, YW Yeh, X Fan, KH Chu, SH Lin… - Photonics, 2021 - mdpi.com
High-quality epitaxial layers are directly related to internal quantum efficiency. The methods
used to design such epitaxial layers are reviewed in this article. The ultraviolet C (UVC) light …