Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes

Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films with high electrical conductivity and ultraviolet (UV) transparency were achieved by radio frequency magnetron sputtering at room temperature (RT) on quartz glass. The influence...

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Main Authors: Kexiong Zhang, Lei Feng, Lei Wang, Jun Zhu, Hai Zhang, Sihua Ha, Jiajun Sun, Hongwei Liang, Tianpeng Yang
Format: Article
Language:English
Published: MDPI AG 2023-06-01
Series:Crystals
Subjects:
Online Access:https://www.mdpi.com/2073-4352/13/7/1018
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author Kexiong Zhang
Lei Feng
Lei Wang
Jun Zhu
Hai Zhang
Sihua Ha
Jiajun Sun
Hongwei Liang
Tianpeng Yang
author_facet Kexiong Zhang
Lei Feng
Lei Wang
Jun Zhu
Hai Zhang
Sihua Ha
Jiajun Sun
Hongwei Liang
Tianpeng Yang
author_sort Kexiong Zhang
collection DOAJ
description Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films with high electrical conductivity and ultraviolet (UV) transparency were achieved by radio frequency magnetron sputtering at room temperature (RT) on quartz glass. The influence of annealing temperature and ambient on the structural, electrical and optical properties of Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films were investigated in detail. As the annealing temperature increases, the optical bandgap of the Ga<sub>2</sub>O<sub>3</sub>-laminated films widens. The Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films exhibited good photoelectric performance with a figure-of-merit (FOM) value of 5.83 × 10<sup>−3</sup> Ω<sup>−1</sup>, a sheet resistance of 12.55 Ω/sq, a transmittance of 95.15% at 325 nm, and an average transmittance of 77.56% (250~300 nm). All these results suggest that RT-fabricated Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films show great potential in UV transparent conductive electrodes for UV optoelectronic devices and in flexible electronics.
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spelling doaj.art-d0f1f449968b4aefad8ed9bfbda835272023-11-18T18:53:15ZengMDPI AGCrystals2073-43522023-06-01137101810.3390/cryst13071018Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive ElectrodesKexiong Zhang0Lei Feng1Lei Wang2Jun Zhu3Hai Zhang4Sihua Ha5Jiajun Sun6Hongwei Liang7Tianpeng Yang8School of Microelectronics, Dalian University of Technology, Dalian 116602, ChinaSchool of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, ChinaSchool of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, ChinaSchool of Physical Science and Technology, Inner Mongolia University, Hohhot 010021, ChinaCollege of Sciences, Inner Mongolia University of Technology, Hohhot 010051, ChinaCollege of Sciences, Inner Mongolia University of Technology, Hohhot 010051, ChinaSchool of Microelectronics, Dalian University of Technology, Dalian 116602, ChinaSchool of Microelectronics, Dalian University of Technology, Dalian 116602, ChinaEpiTop Optoelectronic Co., Ltd., Maanshan 243071, ChinaGa<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films with high electrical conductivity and ultraviolet (UV) transparency were achieved by radio frequency magnetron sputtering at room temperature (RT) on quartz glass. The influence of annealing temperature and ambient on the structural, electrical and optical properties of Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films were investigated in detail. As the annealing temperature increases, the optical bandgap of the Ga<sub>2</sub>O<sub>3</sub>-laminated films widens. The Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films exhibited good photoelectric performance with a figure-of-merit (FOM) value of 5.83 × 10<sup>−3</sup> Ω<sup>−1</sup>, a sheet resistance of 12.55 Ω/sq, a transmittance of 95.15% at 325 nm, and an average transmittance of 77.56% (250~300 nm). All these results suggest that RT-fabricated Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-laminated films show great potential in UV transparent conductive electrodes for UV optoelectronic devices and in flexible electronics.https://www.mdpi.com/2073-4352/13/7/1018Ga<sub>2</sub>O<sub>3</sub>metal/Ga<sub>2</sub>O<sub>3</sub> stacked filmultraviolettransparent and conductive metallic oxides (TCOs)
spellingShingle Kexiong Zhang
Lei Feng
Lei Wang
Jun Zhu
Hai Zhang
Sihua Ha
Jiajun Sun
Hongwei Liang
Tianpeng Yang
Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
Crystals
Ga<sub>2</sub>O<sub>3</sub>
metal/Ga<sub>2</sub>O<sub>3</sub> stacked film
ultraviolet
transparent and conductive metallic oxides (TCOs)
title Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
title_full Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
title_fullStr Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
title_full_unstemmed Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
title_short Ga<sub>2</sub>O<sub>3</sub>/Ag/Ga<sub>2</sub>O<sub>3</sub>-Laminated Film Fabricated at Room Temperature: Toward Applications in Ultraviolet Transparent Highly Conductive Electrodes
title_sort ga sub 2 sub o sub 3 sub ag ga sub 2 sub o sub 3 sub laminated film fabricated at room temperature toward applications in ultraviolet transparent highly conductive electrodes
topic Ga<sub>2</sub>O<sub>3</sub>
metal/Ga<sub>2</sub>O<sub>3</sub> stacked film
ultraviolet
transparent and conductive metallic oxides (TCOs)
url https://www.mdpi.com/2073-4352/13/7/1018
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