High Stability Flexible Deep-UV Detector Based on All-Oxide Heteroepitaxial Junction

Wei Han Chen; Chun Hao Ma; Shang Hsien Hsieh; Yu Hong Lai; Yen Chien Kuo; Chia Hao Chen; Sheng Po Chang; Shoou Jinn Chang; Ray Hua Horng; Ying-hao Chu

doi:10.1021/acsaelm.2c00470

High Stability Flexible Deep-UV Detector Based on All-Oxide Heteroepitaxial Junction

Wei Han Chen, Chun Hao Ma, Shang Hsien Hsieh, Yu Hong Lai, Yen Chien Kuo, Chia Hao Chen, Sheng Po Chang, Shoou Jinn Chang, Ray Hua Horng^*, Ying-hao Chu^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

Transparent flexible electronics constitute a significant research field. Flexible deep-ultraviolet (UV) detectors have received much attention due to their potential in the applications of healthcare, communications, astronomy, and environment monitoring. Recent studies have investigated a variety of flexible photodetectors but show that the transparent, flexible, chemical, and thermal stability performances of these detectors cannot meet the requirements for practical applications. In this study, we demonstrate transparent flexible deep-UV detectors based on the combination of high-quality epitaxial n-type β-Ga2O3 and p-type NiO films as a photodiode on a flexible muscovite substrate. The electrical current of this heterojunction is increased over a 1000 times for on/off ratio under 265 nm wavelength illumination with a reasonable response (<1 s). Moreover, these photodetectors also exhibit good thermal stability as well as excellent mechanical flexibility. Our results exhibit the superior performance of the oxide-based solar-blind deep-UV detectors for advanced flexible sensing and smart applications.

Original language	English
Pages (from-to)	3099-3106
Number of pages	8
Journal	ACS Applied Electronic Materials
Volume	4
Issue number	6
DOIs	https://doi.org/10.1021/acsaelm.2c00470
State	Published - 28 Jun 2022

Keywords

deep UV detector
flexible
oxides
photodiode
transparent

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10.1021/acsaelm.2c00470

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title = "High Stability Flexible Deep-UV Detector Based on All-Oxide Heteroepitaxial Junction",

abstract = "Transparent flexible electronics constitute a significant research field. Flexible deep-ultraviolet (UV) detectors have received much attention due to their potential in the applications of healthcare, communications, astronomy, and environment monitoring. Recent studies have investigated a variety of flexible photodetectors but show that the transparent, flexible, chemical, and thermal stability performances of these detectors cannot meet the requirements for practical applications. In this study, we demonstrate transparent flexible deep-UV detectors based on the combination of high-quality epitaxial n-type β-Ga2O3 and p-type NiO films as a photodiode on a flexible muscovite substrate. The electrical current of this heterojunction is increased over a 1000 times for on/off ratio under 265 nm wavelength illumination with a reasonable response (<1 s). Moreover, these photodetectors also exhibit good thermal stability as well as excellent mechanical flexibility. Our results exhibit the superior performance of the oxide-based solar-blind deep-UV detectors for advanced flexible sensing and smart applications.",

keywords = "deep UV detector, flexible, oxides, photodiode, transparent",

author = "Chen, {Wei Han} and Ma, {Chun Hao} and Hsieh, {Shang Hsien} and Lai, {Yu Hong} and Kuo, {Yen Chien} and Chen, {Chia Hao} and Chang, {Sheng Po} and Chang, {Shoou Jinn} and Horng, {Ray Hua} and Ying-hao Chu",

note = "Publisher Copyright: {\textcopyright} 2022 American Chemical Society.",

year = "2022",

month = jun,

day = "28",

doi = "10.1021/acsaelm.2c00470",

language = "English",

volume = "4",

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T1 - High Stability Flexible Deep-UV Detector Based on All-Oxide Heteroepitaxial Junction

AU - Chen, Wei Han

AU - Ma, Chun Hao

AU - Hsieh, Shang Hsien

AU - Lai, Yu Hong

AU - Kuo, Yen Chien

AU - Chen, Chia Hao

AU - Chang, Sheng Po

AU - Chang, Shoou Jinn

AU - Horng, Ray Hua

AU - Chu, Ying-hao

PY - 2022/6/28

Y1 - 2022/6/28

N2 - Transparent flexible electronics constitute a significant research field. Flexible deep-ultraviolet (UV) detectors have received much attention due to their potential in the applications of healthcare, communications, astronomy, and environment monitoring. Recent studies have investigated a variety of flexible photodetectors but show that the transparent, flexible, chemical, and thermal stability performances of these detectors cannot meet the requirements for practical applications. In this study, we demonstrate transparent flexible deep-UV detectors based on the combination of high-quality epitaxial n-type β-Ga2O3 and p-type NiO films as a photodiode on a flexible muscovite substrate. The electrical current of this heterojunction is increased over a 1000 times for on/off ratio under 265 nm wavelength illumination with a reasonable response (<1 s). Moreover, these photodetectors also exhibit good thermal stability as well as excellent mechanical flexibility. Our results exhibit the superior performance of the oxide-based solar-blind deep-UV detectors for advanced flexible sensing and smart applications.

AB - Transparent flexible electronics constitute a significant research field. Flexible deep-ultraviolet (UV) detectors have received much attention due to their potential in the applications of healthcare, communications, astronomy, and environment monitoring. Recent studies have investigated a variety of flexible photodetectors but show that the transparent, flexible, chemical, and thermal stability performances of these detectors cannot meet the requirements for practical applications. In this study, we demonstrate transparent flexible deep-UV detectors based on the combination of high-quality epitaxial n-type β-Ga2O3 and p-type NiO films as a photodiode on a flexible muscovite substrate. The electrical current of this heterojunction is increased over a 1000 times for on/off ratio under 265 nm wavelength illumination with a reasonable response (<1 s). Moreover, these photodetectors also exhibit good thermal stability as well as excellent mechanical flexibility. Our results exhibit the superior performance of the oxide-based solar-blind deep-UV detectors for advanced flexible sensing and smart applications.

KW - deep UV detector

KW - flexible

KW - oxides

KW - photodiode

KW - transparent

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U2 - 10.1021/acsaelm.2c00470

DO - 10.1021/acsaelm.2c00470

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JO - ACS Applied Electronic Materials

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ER -

High Stability Flexible Deep-UV Detector Based on All-Oxide Heteroepitaxial Junction

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Keywords

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