Defect-Induced Enhancement and Quenching Control of Photocurrent in Few-Layer Graphene Photodetectors

Gowda, Prarthana and Sakorikar, Tushar and Reddy, Siva K and Ferry, Darim B and Misra, Abha (2014) Defect-Induced Enhancement and Quenching Control of Photocurrent in Few-Layer Graphene Photodetectors. In: ACS APPLIED MATERIALS & INTERFACES, 6 (10). pp. 7485-7490.

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Abstract

A novel approach is presented for achieving an enhanced photo-response in a few layer graphene (FLG) based photodetector that is realized by introducing defect sites in the FLG. Fabrication induced wrinkle formation in graphene presented a four-fold enhancement in the photocurrent when compared to unfold PLC. Interestingly, it was observed that the addition of few multiwalled carbon nanotubes to an FLG improves the photocurrent by two-fold along with a highly stable response as compared to FLG alone.

Item Type:	Journal Article
Publication:	ACS APPLIED MATERIALS & INTERFACES
Publisher:	AMER CHEMICAL SOC
Additional Information:	copyright for this article belongs to AMER CHEMICAL SOC, 1155 16TH ST, NW, WASHINGTON, DC 20036 USA
Keywords:	graphene; multiwalled carbon nanotubes; wrinkled graphene; photodetector; photocurrent
Department/Centre:	Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited:	27 Jun 2014 05:59
Last Modified:	27 Jun 2014 05:59
URI:	http://eprints.iisc.ac.in/id/eprint/49373

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