High-performance rigid and flexible ultraviolet photodetectors with single-crystalline ZnGa2O4 nanowires

Zheng Lou, Ludong Li, Guozhen Shen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

95 Citations (Scopus)

Abstract

ZnGa2O4 nanowires (NWs) as a ternary oxide semiconductor were successfully synthesized by a simple vapor transport method for application as highperformance ultraviolet (UV) photodetectors. A single-nanowire UV photodetector fabricated on a rigid silicon substrate exhibited excellent spectral responsivity (3,174 A/W) and high external quantum efficiency (1.1 × 106%) at 350 nm UV light illumination. A flexible single-nanowire photodetector on a polyethylene terephthalate (PET) substrate was also fabricated and showed similar properties. The as-fabricated flexible photodetector exhibited stable electrical properties and mechanical flexibility under different bending curvatures over many cycles, indicating its potential application in future flexible photoelectronic devices. [Figure not available: see fulltext.]

Original languageEnglish
Pages (from-to)2162-2169
Number of pages8
JournalNano Research
Volume8
Issue number7
DOIs
Publication statusPublished - 25 Jul 2015
Externally publishedYes

Keywords

  • UV photodetectors
  • ZnGaO
  • flexible electronics
  • nanowires
  • ternary oxide

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