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

H Zhang, C Huang, K Song, H Yu, C Xing… - 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 …

Recent advances in the growth of gallium oxide thin films employing various growth techniques—a review

BR Tak, S Kumar, AK Kapoor, D Wang… - Journal of Physics D …, 2021 - iopscience.iop.org
Abstract Gallium oxide (Ga 2 O 3) is rapidly emerging as a material of choice for the
development of solar blind photodetectors and power electronic devices which are …

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 …

Superior AlGaN/GaN‐Based Phototransistors and Arrays with Reconfigurable Triple‐Mode Functionalities Enabled by Voltage‐Programmed Two‐Dimensional …

H Zhang, F Liang, L Yang, Z Gao, K Liang… - Advanced …, 2024 - Wiley Online Library
High‐quality imaging units are indispensable in modern optoelectronic systems for accurate
recognition and processing of optical information. To fulfill massive and complex imaging …

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 Xing, 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 …

The road ahead for ultrawide bandgap solar-blind UV photodetectors

A Kalra, UU Muazzam, R Muralidharan… - Journal of Applied …, 2022 - pubs.aip.org
This Perspective seeks to understand and assess why ultrawide bandgap (UWBG)
semiconductor-based deep-UV photodetectors have not yet found any noticeable presence …

Temperature-dependent photodetection behavior of AlGaN/GaN-based ultraviolet phototransistors

L Yang, H Zhang, Y Sun, K Hu, Z Xing, K Liang… - Applied Physics …, 2022 - pubs.aip.org
In this work, we investigated the temperature-dependent photodetection behavior of a high-
performance AlGaN/GaN-based ultraviolet phototransistor (UVPT) operating under 265 nm …

2023 astrophotonics roadmap: pathways to realizing multi-functional integrated astrophotonic instruments

N Jovanovic, P Gatkine, N Anugu… - Journal of Physics …, 2023 - iopscience.iop.org
Photonic technologies offer numerous functionalities that can be used to realize
astrophotonic instruments. The most spectacular example to date is the ESO Gravity …

Enhanced light extraction of the deep-ultraviolet micro-LED via rational design of chip sidewall

M Tian, H Yu, MH Memon, Z Xing, C Huang, H Jia… - Optics Letters, 2021 - opg.optica.org
In this Letter, we perform a comprehensive investigation on the optical characterization of
micro-sized deep-ultraviolet (DUV) LEDs (micro-LEDs) emitting below 280 nm, highlighting …