Room-temperature continuous-wave electrically pumped InGaN/GaN quantum well blue laser diode directly grown on Si

Y Sun, K Zhou, M Feng, Z Li, Y Zhou, Q Sun… - Light: Science & …, 2018 - nature.com
Current laser-based display and lighting applications are invariably using blue laser diodes
(LDs) grown on free-standing GaN substrates, which are costly and smaller in size …

Carrier dynamics at trench defects in InGaN/GaN quantum wells revealed by time-resolved cathodoluminescence

G Kusch, EJ Comish, K Loeto, S Hammersley… - Nanoscale, 2022 - pubs.rsc.org
Time-resolved cathodoluminescence offers new possibilities for the study of semiconductor
nanostructures–including defects. The versatile combination of time, spatial, and spectral …

The impact of trench defects in InGaN/GaN light emitting diodes and implications for the “green gap” problem

FCP Massabuau, MJ Davies, F Oehler… - Applied Physics …, 2014 - pubs.aip.org
The impact of trench defects in blue InGaN/GaN light emitting diodes (LEDs) has been
investigated. Two mechanisms responsible for the structural degradation of the multiple …

Carrier localization in the vicinity of dislocations in InGaN

F Massabuau, P Chen, MK Horton, SL Rhode… - Journal of Applied …, 2017 - pubs.aip.org
We present a multi-microscopy study of dislocations in InGaN, whereby the same threading
dislocation was observed under several microscopes (atomic force microscopy, scanning …

Structure and strain relaxation effects of defects in InxGa1− xN epilayers

SL Rhode, WY Fu, MA Moram… - Journal of Applied …, 2014 - pubs.aip.org
The formation of trench defects is observed in 160 nm-thick In x Ga 1− x N epilayers with x≤
0.20, grown on GaN on (0001) sapphire substrates using metalorganic vapour phase …

[HTML][HTML] Correlating cathodoluminescence and scanning transmission electron microscopy for InGaN platelet nano-LEDs

AR Persson, A Gustafsson, Z Bi, L Samuelson… - Applied Physics …, 2023 - pubs.aip.org
Structural defects are detrimental to the efficiency and quality of optoelectronic
semiconductor devices. In this work, we study InGaN platelets with a quantum well structure …

Dislocations in AlGaN: Core structure, atom segregation, and optical properties

FCP Massabuau, SL Rhode, MK Horton… - Nano …, 2017 - ACS Publications
We conducted a comprehensive investigation of dislocations in Al0. 46Ga0. 54N. Using
aberration-corrected scanning transmission electron microscopy and energy dispersive X …

Cathodoluminescence investigations of dark-line defects in platelet-based InGaN nano-LED structures

A Gustafsson, AR Persson, POÅ Persson… - …, 2024 - iopscience.iop.org
We have investigated the optical properties of heterostructured InGaN platelets aiming at red
emission, intended for use as nano-scaled light-emitting diodes. The focus is on the …

Effects of indium flow rate on the structural, morphological, optical and electrical properties of InGaN layers grown by metal organic chemical vapour deposition

K Prabakaran, R Ramesh, P Arivazhagan… - Journal of Alloys and …, 2019 - Elsevier
InGaN/GaN heterostructures were grown on c-plane sapphire substrates using metal
organic chemical vapour deposition by varying the trimethylindium flow rate as 7, 10 and 14 …

Efficient InGaN‐Based Red Light‐Emitting Diodes by Modulating Trench Defects

Z Pan, Z Chen, H Zhang, H Yang… - Advanced Functional …, 2024 - Wiley Online Library
Trench defects in multi‐quantum wells (MQWs) have been considered as flawed structures
that severely degraded the internal quantum efficiency (IQE) of light‐emitting diodes (LEDs) …