Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes

We fabricated an indium tin oxide (ITO)/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer as a transparent conductive electrode for ultraviolet light-emitting diodes (UV LEDs). The electrical and optical properties of the multilayer were improved by optimizing the annealing temperature of the ITO contact layer and...

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Detalles Bibliográficos
Autores principales: Liang, Siwei, Zhou, Quanbin, Li, Xianhui, Zhong, Ming, Wang, Hong
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473997/
https://www.ncbi.nlm.nih.gov/pubmed/30857351
http://dx.doi.org/10.3390/nano9030403
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author Liang, Siwei
Zhou, Quanbin
Li, Xianhui
Zhong, Ming
Wang, Hong
author_facet Liang, Siwei
Zhou, Quanbin
Li, Xianhui
Zhong, Ming
Wang, Hong
author_sort Liang, Siwei
collection PubMed
description We fabricated an indium tin oxide (ITO)/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer as a transparent conductive electrode for ultraviolet light-emitting diodes (UV LEDs). The electrical and optical properties of the multilayer were improved by optimizing the annealing temperature of the ITO contact layer and the whole ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer, and the thickness of the ITO contact layer and Ag metal layer. After optimization, the sheet resistance and transmittance of the ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer was 3.43 Ω/sq and 86.4% at 335 nm, respectively. The ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer also exhibited a good ohmic contact characteristic with a specific contact resistance of 1.45×10(−3) Ω·cm(2). These results show that the proposed ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer is a promising alternative as a p-type electrode for UV LEDs.
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spelling pubmed-64739972019-05-03 Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes Liang, Siwei Zhou, Quanbin Li, Xianhui Zhong, Ming Wang, Hong Nanomaterials (Basel) Article We fabricated an indium tin oxide (ITO)/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer as a transparent conductive electrode for ultraviolet light-emitting diodes (UV LEDs). The electrical and optical properties of the multilayer were improved by optimizing the annealing temperature of the ITO contact layer and the whole ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer, and the thickness of the ITO contact layer and Ag metal layer. After optimization, the sheet resistance and transmittance of the ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer was 3.43 Ω/sq and 86.4% at 335 nm, respectively. The ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer also exhibited a good ohmic contact characteristic with a specific contact resistance of 1.45×10(−3) Ω·cm(2). These results show that the proposed ITO/Ga(2)O(3)/Ag/Ga(2)O(3) multilayer is a promising alternative as a p-type electrode for UV LEDs. MDPI 2019-03-10 /pmc/articles/PMC6473997/ /pubmed/30857351 http://dx.doi.org/10.3390/nano9030403 Text en © 2019 by the authors. 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 (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Liang, Siwei
Zhou, Quanbin
Li, Xianhui
Zhong, Ming
Wang, Hong
Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title_full Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title_fullStr Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title_full_unstemmed Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title_short Electrical and Optical Properties of a Transparent Conductive ITO/Ga(2)O(3)/Ag/Ga(2)O(3) Multilayer for Ultraviolet Light-Emitting Diodes
title_sort electrical and optical properties of a transparent conductive ito/ga(2)o(3)/ag/ga(2)o(3) multilayer for ultraviolet light-emitting diodes
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6473997/
https://www.ncbi.nlm.nih.gov/pubmed/30857351
http://dx.doi.org/10.3390/nano9030403
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