Burying non-radiative defects in InGaN underlayer to increase InGaN/GaN quantum well efficiency

C Haller, JF Carlin, G Jacopin, D Martin, R Butté… - Applied Physics …, 2017 - pubs.aip.org
The insertion of an InGaN underlayer (UL) is known to strongly improve the performance of
InGaN/GaN quantum well (QW) based blue light emitting diodes (LEDs). However, the …

The effect of nanometre-scale V-pits on electronic and optical properties and efficiency droop of GaN-based green light-emitting diodes

S Zhou, X Liu, H Yan, Y Gao, H Xu, J Zhao, Z Quan… - Scientific reports, 2018 - nature.com
The development of efficient green light-emitting diodes (LEDs) is of paramount importance
for the realization of colour-mixing white LEDs with a high luminous efficiency. While the …

[HTML][HTML] Defect-reduction mechanism for improving radiative efficiency in InGaN/GaN light-emitting diodes using InGaN underlayers

AM Armstrong, BN Bryant, MH Crawford… - Journal of Applied …, 2015 - pubs.aip.org
The influence of a dilute In x Ga 1-x N (x∼ 0.03) underlayer (UL) grown below a single In
0.16 Ga 0.84 N quantum well (SQW), within a light-emitting diode (LED), on the radiative …

Influence of barrier thickness on the performance of InGaN/GaN multiple quantum well solar cells

JJ Wierer, DD Koleske, SR Lee - Applied Physics Letters, 2012 - pubs.aip.org
The performance of InGaN/GaN multiple quantum well (MQW) solar cells containing 15
periods of 2.7 nm thick In 0.21 Ga 0.79 N wells and three different GaN barriers thicknesses …

Defect incorporation in In-containing layers and quantum wells: experimental analysis via deep level profiling and optical spectroscopy

F Piva, C De Santi, A Caria, C Haller… - Journal of Physics D …, 2020 - iopscience.iop.org
Recent studies demonstrated that the performance of InGaN/GaN quantum well (QW) light
emitting diodes (LEDs) can be significantly improved through the insertion of an InGaN …

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 …

InAlN underlayer for near ultraviolet InGaN based light emitting diodes

C Haller, JF Carlin, M Mosca, MD Rossell… - Applied Physics …, 2019 - iopscience.iop.org
We report on InAlN underlayer (UL) to improve the efficiency of near ultraviolet (NUV) light
emitting diodes (LEDs). While InGaN UL is commonly used in high-efficiency blue LEDs it …

The effects of Si-doped prelayers on the optical properties of InGaN/GaN single quantum well structures

MJ Davies, P Dawson, FCP Massabuau… - Applied Physics …, 2014 - pubs.aip.org
In this paper, we report on the effects of including Si-doped (In) GaN prelayers on the low
temperature optical properties of a blue-light emitting InGaN/GaN single quantum well. We …

A study of the inclusion of prelayers in InGaN/GaN single‐and multiple‐quantum‐well structures

MJ Davies, P Dawson, FCP Massabuau… - … status solidi (b), 2015 - Wiley Online Library
We report on the effects on the optical properties of blue‐light emitting InGaN/GaN single‐
and multiple‐quantum‐well structures including a variety of prelayers. For each single …

Influence of an InGaN superlattice pre-layer on the performance of semi-polar (11–22) green LEDs grown on silicon

X Zhao, K Huang, J Bruckbauer, S Shen, C Zhu… - Scientific Reports, 2020 - nature.com
It is well-known that it is crucial to insert either a single InGaN underlayer or an InGaN
superlattice (SLS) structure (both with low InN content) as a pre-layer prior to the growth of …