# Tailoring photodetection performance of selfpowered Ga2O3 UV solar-blind photodetectors through asymmetric electrodes

https://mdr.nims.go.jp/datasets/065084ae-6856-4918-a494-5206ae39cb87

## Files

- [JMCC-Ga2O3-230318.pdf](https://mdr.nims.go.jp/filesets/7589cb3c-1d0c-4529-8c3b-e914065721a7/download) ([Detail](https://mdr.nims.go.jp/filesets/7589cb3c-1d0c-4529-8c3b-e914065721a7.md))

## Id

065084ae-6856-4918-a494-5206ae39cb87

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2023-11-29T04:15:00.215263Z

## Updated at

2024-03-21T23:30:12.083074Z

## Published at

2024-03-21T23:30:12.466627Z

## Doi

https://doi.org/10.48505/nims.4272

## First published url

https://doi.org/10.1039/D3TC00387F

## Date published

2023-03-22

## Recorded date published

2023-4-27

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Tailoring photodetection performance of selfpowered Ga2O3 UV solar-blind
    photodetectors through asymmetric electrodes
  title_type: original
  lang: en

## Description

- description: "Self-powered solar-blind UV detectors are playing an increasingly
    critical role in the sustainable\r\ndevelopment of photodetectors with low energy
    consumption. In this work, the design of electrode\r\nstructures, including an
    asymmetric-size structure and an asymmetric-material structure, was proposed to
    achieve self-powered photodetection function for the solar-blind UV a-Ga2O3 based
    photodetectors with metal–semiconductor–metal (MSM) structures. The results indicate
    that the Au/Ti/Ga2O3/Ti/Au photodetector with an asymmetric-electrode-size shows
    photodetection performances of responsivity (R), external quantum efficiency (EQE),
    and detectivity (D*) of 0.149 mA W\x021, 0.07%, and 3.1 \x03 109 cm Hz1/2 W\x021@0
    V, respectively. The asymmetric-electrode-material photodetectors with Au/Ti/Ga2O3/GZO
    and Au/Ti/Ga2O3/Au structures possess photodetection performances of R, EQE, and
    D* of 0.591 mA W\x021, 0.29%, and 2.9 \x03 109 cm Hz1/2 W\x021 and 0.148 mA W\x021,
    0.07%, and 7.8 \x03 108 cm Hz1/2 W\x021@0 V, respectively. The electrodes with
    the asymmetric-size structure and the asymmetric-material structure result in
    different Schottky barrier heights in the interfaces of the electrodes and films,
    which are favorable for realizing self-powered performance. The self-powered solar-blind
    UV a-Ga2O3 based photodetectors have a fast photo-response speed, high stability
    and high repeatability. These findings provide a promising and facile route to
    fabricate a-Ga2O3 self-powered solar-blind UV photodetectors with high photodetection."
  description_type: abstract
  lang: eng

## Creator

- name: Keyun Gu
  role: author
- name: Zilong Zhang
  role: author
  orcid: https://orcid.org/0000-0002-9759-9253
  organization: National Institute for Materials Science
- name: Haofei Huang
  role: author
- name: Ke Tang
  role: author
- name: Jian Huang
  role: author
- name: Meiyong Liao
  role: author
  orcid: https://orcid.org/0000-0003-1361-4266
  organization: National Institute for Materials Science
- name: Linjun Wang
  role: author

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: UV detector
  schema: not_defined
- subject: gallium oxide
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2023-03-22
end_date: 2024-03-22

## Journal

- title: Journal of Materials Chemistry C
  issn: '20507526'
  volume: '11'
  issue: '16'
  start_page: 5371
  end_page: 5377

## Conference



## Related item



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



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## Fileset

- id: 7589cb3c-1d0c-4529-8c3b-e914065721a7
  filename: JMCC-Ga2O3-230318.pdf
  content_type: application/pdf
  size: 700915
  md5: 1da4090ee53d10809afa769ea4892324

## Thumbnail

fileset_id: 7589cb3c-1d0c-4529-8c3b-e914065721a7
filename: JMCC-Ga2O3-230318.pdf