NDLI: Self-powered, visible-light photodetector based on thermally reduced graphene oxide–ZnO (rGO

Content Provider	Royal Society of Chemistry (RSC)
Author	Zheng, Lianxi Zhan, Zhaoyao Li, Lin Pan, Yongzheng Sun, Gengzhi
Copyright Year	2012
Abstract	Here we report a new type of self-powered, visible-light photodetector fabricated from thermally reduced rGO–ZnO hybrid nanostructure. The photocurrent generation of the photodetectors under zero-bias enables hybrid rGO–ZnO devices to work like photovoltaic cells, which could power themselves without electrical power input. The thermal treatment at elevated temperature not only reduces graphene oxide (GO) into reduced graphene oxide (rGO), but also dopes the ZnO nanoparticles with carbon atoms, enabling their visible-light photoresponse capability. The pronounced and fast photocurrent generation was attributed to the efficient charge transfer between the rGO and carbon-doped ZnO nanoparticles, which were in intimate contact. The efficient charge transfer of the rGO–ZnO hybrid nanostructures also indicates that there could be applications in other light energy harvesting devices, including solar cells, sensors and visible-light photocatalysis.
Starting Page	2589
Ending Page	2595
Page Count	7
File Format	HTM / HTML PDF
ISSN	09599428
Volume Number	22
Issue Number	6
Journal	Journal of Materials Chemistry
DOI	10.1039/c1jm13920g
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Photodetector Nanostructure Photocurrent Solar cell Graphene Carbon Intimate Contact Photocatalysis
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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