Abstract
A graphene and zinc oxide nanowires (G/ZnO NWs) based ultraviolet (UV) photodetector presents excellent responsivity and photocurrent gain with detectivity. Graphene due to higher charge carrier transport mobility induces faster response to UV illumination at the interface between ZnO and graphene with improved response and decay times as compared to a ZnO NWs device alone. A linear increase is revealed for both the responsivity and photocurrent gain of the G/ZnO NWs device with the applied bias. These results suggest that the G/ZnO NWs device exhibits great promise for highly efficient UV photodetectors.
| Original language | English |
|---|---|
| Article number | 235703 |
| Journal | Nanotechnology |
| Volume | 26 |
| Issue number | 23 |
| DOIs | |
| State | Published - 12 Jun 2015 |
| Externally published | Yes |
Bibliographical note
Publisher Copyright:© 2015 IOP Publishing Ltd.
Keywords
- grapheme
- photodetector
- responsivity
- zinc oxide nanowires
ASJC Scopus subject areas
- Bioengineering
- General Chemistry
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- Electrical and Electronic Engineering
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