# Ultrahigh Responsivity of Diamond-based Solar-blind Photodetectors Using Hydrogen Plasma Treatment

https://mdr.nims.go.jp/datasets/14a90266-15a4-4c18-a7e0-98c6ac1cf75c

## File

- [Keyun Gu IEEE-NEMS 20231214-check Liao-R.pdf](https://mdr.nims.go.jp/filesets/bf426a44-0b6a-425d-9ea6-012948ec67d2/download) ([Detail](https://mdr.nims.go.jp/filesets/bf426a44-0b6a-425d-9ea6-012948ec67d2.md))

## Id

14a90266-15a4-4c18-a7e0-98c6ac1cf75c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2024-05-15T05:02:40.226290Z

## Updated at

2024-05-16T03:30:23.822933Z

## Published at

2024-05-16T03:30:24.234173Z

## Doi

https://doi.org/10.48505/nims.4510

## First published url

https://www.ieee-nems2024.org/

## Date published



## Recorded date published



## Resource type

conference_poster

## Manuscript type

na

## Collection



## Title

- title: Ultrahigh Responsivity of Diamond-based Solar-blind Photodetectors Using
    Hydrogen Plasma Treatment
  title_type: original
  lang: en

## Description

- description: Diamond-based solar blind ultraviolet (UV) photodetectors (PDs) have
    attracted extensive attention due to their unique characteristics in extremely
    harsh environment. Until now, its low responsivity has not been sufficient to
    meet the needs of the application. Here, an ultrahigh performance diamond-based
    solar blind UV PD was obtained by controlling the two-dimensional hole carrier
    concentration on the epilayer-free Ib-type diamond surface through adjusting the
    time of hydrogen plasma treatment. The diamond-based PD with 30 min hydrogen plasma
    treatment exhibits an ultrahigh responsivity of 16683 A/W and a superhigh external
    quantum efficiency (EQE) of 9.41×106%, which are far superior to the previously
    reported diamond-based, AlGaN-based, and Ga2O3-based solar blind PDs.  These results
    open up a facile route to prepare high-performance photodetectors.
  description_type: abstract
  lang: eng

## Creator

- name: Keyun Gu
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Functional Materials
    Field/Ultra-wide Bandgap Semiconductors Group
  ror: https://ror.org/026v1ze26
- name: Zilong Zhang
  role: author
  orcid: https://orcid.org/0000-0002-9759-9253
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Functional Materials
    Field/Ultra-wide Bandgap Semiconductors Group
  ror: https://ror.org/026v1ze26
- name: Guo Chen
  role: author
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Functional Materials
    Field/Ultra-wide Bandgap Semiconductors Group
  ror: https://ror.org/026v1ze26
- name: Liwen Sang
  role: author
  orcid: https://orcid.org/0000-0003-0946-1025
  organization: National Institute for Materials Science
  department: Research Center for Materials Nanoarchitectonics (MANA)/Quantum Materials
    Field/Thin Film Electronics Group
  ror: https://ror.org/026v1ze26
- name: Jian Huang
  role: author
  organization: Shanghai University
- name: Yasuo Koide
  role: author
  orcid: https://orcid.org/0000-0001-8321-9822
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials
  ror: https://ror.org/026v1ze26
- name: Meiyong Liao
  role: author
  orcid: https://orcid.org/0000-0003-1361-4266
  organization: National Institute for Materials Science
  department: Research Center for Electronic and Optical Materials/Functional Materials
    Field/Ultra-wide Bandgap Semiconductors Group
  ror: https://ror.org/026v1ze26

## Contact agent



## Publisher

organization: IEEE

## Managing organization



## Keyword

- subject: Diamond
  schema: not_defined
- subject: photodetector
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal



## Conference

name: IEEE-NEMS 2024
start_date: 2024-05-02
end_date: 2024-05-05
identifier: https://www.ieee-nems2024.org/

## Related item



## Funding



## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



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## Custom property



## Fileset

- id: bf426a44-0b6a-425d-9ea6-012948ec67d2
  filename: Keyun Gu IEEE-NEMS 20231214-check Liao-R.pdf
  content_type: application/pdf
  size: 621836
  md5: cac6038be00048f69d5395963426f52a

## Thumbnail

fileset_id: bf426a44-0b6a-425d-9ea6-012948ec67d2
filename: Keyun Gu IEEE-NEMS 20231214-check Liao-R.pdf