Deep‐ultraviolet micro‐LEDs exhibiting high output power and high modulation bandwidth simultaneously

D Li, S Liu, Z Qian, Q Liu, K Zhou, D Liu… - Advanced …, 2022 - Wiley Online Library
Abstract Deep‐ultraviolet (DUV) solar‐blind communication (SBC) shows distinct
advantages of non‐line‐of‐sight propagation and background noise negligibility over …

In-depth investigation of deep ultraviolet MicroLED geometry for enhanced performance

S Xiao, H Yu, MH Memon, H Jia, Y Luo… - IEEE Electron …, 2023 - ieeexplore.ieee.org
In this work, we demonstrate a straightforward and effective strategy, so called perimeter-to-
area ratio (P/A ratio) engineering, to enhance the optical performance of deep-ultraviolet …

A 10× 10 deep ultraviolet light-emitting micro-LED array

H Yu, MH Memon, H Jia, H Zhang, M Tian… - Journal of …, 2022 - iopscience.iop.org
In this work, we design and fabricate a deep ultraviolet (DUV) light-emitting array consisting
of 10× 10 micro-LEDs (μ-LEDs) with each device having 20 μm in diameter. Strikingly, the …

Enhanced light extraction efficiency of micropixel geometry AlGaN DUV light-emitting diodes

R Floyd, M Gaevski, K Hussain, A Mamun… - Applied Physics …, 2021 - iopscience.iop.org
We report a 1.8 times improved light extraction efficiency for truncated cone AlGaN DUV
(275 nm emission) micropixel LEDs when the pixel size was reduced from 90 to 5 μm. This …

Size dependent characteristics of AlGaN-based deep ultraviolet micro-light-emitting-diodes

Y Yao, H Li, P Li, CJ Zollner, M Wang, M Iza… - Applied Physics …, 2022 - iopscience.iop.org
AlGaN-based deep ultraviolet (DUV) micro-light-emitting diodes (μLEDs) with emission
wavelengths between 277 and 304 nm with mesa dimensions down to 20 μm were …

[HTML][HTML] Temperature-dependent study on AlGaN-based deep ultraviolet light-emitting diode for the origin of high ideality factor

Y Liao, D Li, Q Guo, Y Liu, H Wang, W Hu, ZL Wang - AIP Advances, 2021 - pubs.aip.org
Deep ultraviolet light-emitting diodes (DUV LEDs) are promising light sources for
disinfection, especially during the pandemic of novel coronavirus (COVID-19). Despite much …

Variable temperature thermal droop characteristics of 255 nm UV LED

S Deng, Z Chen, M Li, M Su, X Zhu, K Xiao… - Applied Physics …, 2022 - pubs.aip.org
Thermal droop, ie, the loss of emission efficiency over a certain temperature range, is an
important performance bottleneck for the successful commercial application of deep …

High wall-plug efficiency AlGaN deep ultraviolet micro-LEDs enabled by an etched reflective array design for high data transmission

Y Yang, Y Hou, F Wu, Z Zheng, S Tan… - … on Electron Devices, 2024 - ieeexplore.ieee.org
AlGaN deep ultraviolet light-emitting diodes (DUV LEDs) have potential applications in free-
space communication, but their current limited efficiency restricts the further development of …

Stripping GaN/InGaN epitaxial films and fabricating vertical GaN-based light-emitting diodes

X Tang, Z Ma, L Han, Z Deng, Y Jiang, W Wang… - Vacuum, 2021 - Elsevier
The growth technology of GaN-based light-emitting-diodes (LEDs) greatly restricts their
preparation of vertical structure. Now we can get GaN-based LEDs structure on silicon (Si) …

The dependence of light extraction improvement on optimized surface microstructure for AlGaN-based UVC-LEDs considering TM-polarized emission

Y Zhu, H Lu, J Wang, T Yu, Z Li, Y Tian - Micro and Nanostructures, 2023 - Elsevier
In order to improve the light extraction of AlGaN-based short wavelength ultraviolet light
emitting diodes (DUC-LEDs), a type of microstructure with high aspect ratio is introduced …