Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells

We have improved the material quality of the high indium composition InGaN/GaN multiple quantum wells (MQWs) grown on free-standing GaN substrates using the graded-indium-content superlattice. We found that by adopting a graded-indium-content superlattice structure, the spectral FWHM of the yellow e...

Descripción completa

Detalles Bibliográficos
Autores principales: Li, Xuan, Liu, Jianping, Su, Xujun, Huang, Siyi, Tian, Aiqin, Zhou, Wei, Jiang, Lingrong, Ikeda, Masao, Yang, Hui
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8069205/
https://www.ncbi.nlm.nih.gov/pubmed/33918874
http://dx.doi.org/10.3390/ma14081877
_version_ 1783683182531444736
author Li, Xuan
Liu, Jianping
Su, Xujun
Huang, Siyi
Tian, Aiqin
Zhou, Wei
Jiang, Lingrong
Ikeda, Masao
Yang, Hui
author_facet Li, Xuan
Liu, Jianping
Su, Xujun
Huang, Siyi
Tian, Aiqin
Zhou, Wei
Jiang, Lingrong
Ikeda, Masao
Yang, Hui
author_sort Li, Xuan
collection PubMed
description We have improved the material quality of the high indium composition InGaN/GaN multiple quantum wells (MQWs) grown on free-standing GaN substrates using the graded-indium-content superlattice. We found that by adopting a graded-indium-content superlattice structure, the spectral FWHM of the yellow emitting InGaN/GaN MQW was reduced from 181 meV to 160 meV, and the non-radiative recombination lifetime increased from 13 ns to 44 ns. Besides, the graded-indium-content superlattice can mitigate strain relaxation in high indium composition MQWs as shown by the TEM diffraction patterns.
format Online
Article
Text
id pubmed-8069205
institution National Center for Biotechnology Information
language English
publishDate 2021
publisher MDPI
record_format MEDLINE/PubMed
spelling pubmed-80692052021-04-26 Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells Li, Xuan Liu, Jianping Su, Xujun Huang, Siyi Tian, Aiqin Zhou, Wei Jiang, Lingrong Ikeda, Masao Yang, Hui Materials (Basel) Article We have improved the material quality of the high indium composition InGaN/GaN multiple quantum wells (MQWs) grown on free-standing GaN substrates using the graded-indium-content superlattice. We found that by adopting a graded-indium-content superlattice structure, the spectral FWHM of the yellow emitting InGaN/GaN MQW was reduced from 181 meV to 160 meV, and the non-radiative recombination lifetime increased from 13 ns to 44 ns. Besides, the graded-indium-content superlattice can mitigate strain relaxation in high indium composition MQWs as shown by the TEM diffraction patterns. MDPI 2021-04-09 /pmc/articles/PMC8069205/ /pubmed/33918874 http://dx.doi.org/10.3390/ma14081877 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Li, Xuan
Liu, Jianping
Su, Xujun
Huang, Siyi
Tian, Aiqin
Zhou, Wei
Jiang, Lingrong
Ikeda, Masao
Yang, Hui
Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title_full Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title_fullStr Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title_full_unstemmed Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title_short Effect of Graded-Indium-Content Superlattice on the Optical and Structural Properties of Yellow-Emitting InGaN/GaN Quantum Wells
title_sort effect of graded-indium-content superlattice on the optical and structural properties of yellow-emitting ingan/gan quantum wells
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8069205/
https://www.ncbi.nlm.nih.gov/pubmed/33918874
http://dx.doi.org/10.3390/ma14081877
work_keys_str_mv AT lixuan effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT liujianping effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT suxujun effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT huangsiyi effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT tianaiqin effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT zhouwei effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT jianglingrong effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT ikedamasao effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells
AT yanghui effectofgradedindiumcontentsuperlatticeontheopticalandstructuralpropertiesofyellowemittinginganganquantumwells

Ejemplares similares