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Proceedings Paper

Photovoltaic and photoconductive effects in different individual single-walled carbon-nanotube-based devices
Author(s): Yuxiu Zhou; Tie Li; Yuelin Wang
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Paper Abstract

In this paper, photovoltaic and photoconductive responses were observed respectively in different individual single-walled carbon nanotube based devices of similar device configurations. Under IR lamp illumination in vacuum, photocurrent at zero voltage bias was found in one device while resistance change instead of photovoltaic effects was observed in the other device. The photocurrent was found to decrease as the temperature decreased from room temperature to 78K; on the contrary, the photoconductive effect was enhanced as the temperature decreased. Schottky barriers are suggested to be asymmetric for the photovoltaic device while symmetric for the photoconductive device. The barrier heights of the photovoltaic device were also calculated based on hot electron emission mode of Schottky barrier.

Paper Details

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8191, International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies, 819117 (8 September 2011); doi: 10.1117/12.900528
Show Author Affiliations
Yuxiu Zhou, Shanghai Institute of Microsystem and Information Technology (China)
Graduate Univ. of the Chinese Academy of Sciences (China)
Tie Li, Shanghai Institute of Microsystem and Information Technology (China)
Yuelin Wang, Shanghai Institute of Microsystem and Information Technology (China)


Published in SPIE Proceedings Vol. 8191:
International Symposium on Photoelectronic Detection and Imaging 2011: Sensor and Micromachined Optical Device Technologies
Yuelin Wang; Huikai Xie; Yufeng Jin, Editor(s)

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