Performance analysis of photo-electrochemical photodetector based on liquid-phase exfoliation few-layered graphdiyne nanosheets

Peng Yin, Wenli Bao, Lingfeng Gao, Jianlong Kang, Rui Huang, Xin Wang, Songrui Wei, Yanqi Ge, Han Zhang

Research output: Contribution to journalArticleResearchpeer-review

13 Citations (Scopus)

Abstract

The band gap of two-dimensional (2D) materials become a hot issue for photoelectric detection. Recently, public attention is thoroughly aroused as to the remarkable electrical transport characteristic and super photoresponse of 2D graphdiyne. The simulation results show that the photoresponse can be adjusted in various solutions based on the graphdiyne nanosheets with different sizes and thicknesses. Based on few-layered graphdiyne nanosheets prepared by a liquid-phase exfoliation method, a photoelectrochemical (PEC)-type few-layered graphdiyne photodetector is demonstrated in this paper. A group of PEC tests are carried out in neutral solution to verify the simulation results. The as-prepared graphdiyne photodetector possesses high photocurrent density, effective responsivity and excellent cycle stability in condition of KCl electrolyte and solar illuminance. The detectivity of the PEC-type graphdiyne photodetector can be easy to adjust by altering electrolyte concentration and other corresponding parameters, which indicates the proposed equipment can be a good candidate for photoelectric detection.

Original languageEnglish
Pages (from-to)2833-2845
Number of pages13
JournalNanophotonics
Volume10
Issue number11
DOIs
Publication statusPublished - Sept 2021

Keywords

  • graphdiyne
  • long-term stability
  • neutral environment
  • photodetection
  • photoelectrochemical

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