Few-layer graphene/ZnO nanowires based high performance UV photodetector

Boruah, Buddha Deka and Ferry, Darim B and Mukherjee, Anwesha and Misra, Abha (2015) Few-layer graphene/ZnO nanowires based high performance UV photodetector. In: NANOTECHNOLOGY, 26 (23).

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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.

Item Type:	Journal Article
Publication:	NANOTECHNOLOGY
Publisher:	IOP PUBLISHING LTD
Additional Information:	Copy right for this article belongs to the IOP PUBLISHING LTD, TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Keywords:	zinc oxide nanowires; graphene; responsivity; photodetector
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	22 Jun 2015 05:03
Last Modified:	22 Jun 2015 05:03
URI:	http://eprints.iisc.ac.in/id/eprint/51717

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