Influence of excitation power and temperature on photoluminescence in InGaN/GaN multiple quantum wells

H Wang, Z Ji, S Qu, G Wang, Y Jiang, B Liu, X Xu… - Optics express, 2012 - opg.optica.org
Excitation power and temperature dependences of the photoluminescence (PL) spectra are
studied in InGaN/GaN multiple quantum wells (MQWs). The excitation power dependences …

Advances in the LED materials and architectures for energy-saving solid-state lighting toward “lighting revolution”

ST Tan, XW Sun, HV Demir… - IEEE Photonics …, 2012 - ieeexplore.ieee.org
In this paper, we review the recent developments (in years 2010–2011) of energy-saving
solid-state lighting. The industry of white light-emitting diodes (LEDs) has made significant …

Study on the current spreading effect and light extraction enhancement of vertical GaN/InGaN LEDs

CK Li, YR Wu - IEEE transactions on electron devices, 2011 - ieeexplore.ieee.org
This study analyzes the current spreading effect and light extraction efficiency (LEE) of
lateral and vertical light-emitting diodes (LEDs). Specifically, this study uses a fully 2-D …

Continuous-wave operation of (Al, In) GaN distributed-feedback laser diodes with high-order notched gratings

TJ Slight, S Stanczyk, S Watson, A Yadav… - Applied Physics …, 2018 - iopscience.iop.org
We report on the continuous-wave, room-temperature operation of a distributed-feedback
laser diode (DFB-LD) with high-order notched gratings. The design, fabrication, and …

Theoretical study of nitride short period superlattices

I Gorczyca, T Suski, NE Christensen… - Journal of Physics …, 2018 - iopscience.iop.org
Discussion of band gap behavior based on first principles calculations of electronic band
structures for various short period nitride superlattices is presented. Binary superlattices, as …

Low resistivity HfN x grown by plasma-assisted ALD with external rf substrate biasing

S Karwal, MA Verheijen, BL Williams, T Faraz… - Journal of Materials …, 2018 - pubs.rsc.org
Plasma-assisted atomic layer deposition (ALD) of HfNx thin films using tris (dimethylamino)
cyclopentadienylhafnium [CpHf (NMe2) 3] as the Hf precursor and H2 plasma as the …

[HTML][HTML] Dynamic characteristics of 410 nm semipolar (202 1) III-nitride laser diodes with a modulation bandwidth of over 5 GHz

C Lee, C Zhang, DL Becerra, S Lee, CA Forman… - Applied Physics …, 2016 - pubs.aip.org
The dynamic characteristics of III-nitride multi-quantum well laser diodes (LDs) emitting at
410 nm were investigated. LDs were grown on semipolar (20 2 1) bulk GaN substrates and …

On the effect of step-doped quantum barriers in InGaN/GaN light emitting diodes

ZH Zhang, ST Tan, Z Ju, W Liu, Y Ji… - Journal of Display …, 2012 - ieeexplore.ieee.org
InGaN/GaN light-emitting diodes (LEDs) make an important class of optoelectronic devices,
increasingly used in lighting and displays. Conventional InGaN/GaN LEDs of c-orientation …

Determination of internal parameters for AlGaN-cladding-free m-plane InGaN/GaN laser diodes

RM Farrell, DA Haeger, PS Hsu, K Fujito… - Applied Physics …, 2011 - pubs.aip.org
The dependence of device characteristics on cavity length is used to determine the injection
efficiency, internal loss, and material gain of electrically injected AlGaN-cladding-free m …

Cascade mechanism and mechanical property of the dislocation loop formation in GaN twin crystal-induced crystallization

M Tan, T Gao, Q Xiao, Y Gao, Y Liu, Q Xie… - Materials Science in …, 2022 - Elsevier
Single-crystal gallium nitride (GaN) is considered as the key to future high-performance light
emitters and power devices. Nevertheless, a mixed phase with micro twins often exists in …