Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
TRANSPARENT; REDUCTION; DEVICES; SHEETS; Physics, Applied
Abstract
We fabricated large area infrared photodetector devices from thin film of chemically reduced graphene oxide (RGO) sheets and studied their photoresponse as a function of laser position. We found that the photocurrent either increases, decreases, or remain almost zero depending upon the position of the laser spot with respect to the electrodes. The position sensitive photoresponse is explained by Schottky barrier modulation at the RGO film-electrode interface. The time response of the photocurrent is dramatically slower than single sheet of graphene possibly due to disorder from the chemical synthesis and interconnecting sheets.
Journal Title
Applied Physics Letters
Volume
96
Issue/Number
16
Publication Date
1-1-2010
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0003-6951
Recommended Citation
Ghosh, Surajit; Sarker, Biddut K.; Chunder, Anindarupa; Zhai, Lei; and Khondaker, Saiful I., "Position dependent photodetector from large area reduced graphene oxide thin films" (2010). Faculty Bibliography 2010s. 181.
https://stars.library.ucf.edu/facultybib2010/181
Comments
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