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Sensors 2013, 13(1), 966-974; doi:10.3390/s130100966
Article

C59N Peapods Sensing the Temperature

1,2,* , 2 and 2,*
1 State Key Laboratory of Heavy Oil Processing, College of Chemical Engineering, China University of Petroleum, Changping District, Beijing 102249, China 2 Department of Electronic Engineering, Tohoku University, Sendai 980-8579, Japan
* Authors to whom correspondence should be addressed.
Received: 29 November 2012 / Revised: 5 January 2013 / Accepted: 14 January 2013 / Published: 15 January 2013
(This article belongs to the Special Issue Nanotube and Nanowire Sensors)
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Abstract

We report the novel photoresponse of nanodevices made from azafullerene (C59N)-encapsulated single-walled carbon nanotubes (C59N@SWNTs), so called peapods. The photoconducting properties of a C59N@SWNT are measured over a temperature range of 10 to 300 K under a field-effect transistor configuration. It is found that the photosensitivity of C59N@SWNTs depends very sensitively on the temperature, making them an attractive candidate as a component of nanothermometers covering a wide temperature range. Our results indicate that it is possible to read the temperature by monitoring the optoelectronics signal of C59N@SWNTs. In particular, sensing low temperatures would become more convenient and easy by giving a simple light pulse.
Keywords: azafullerenes; carbon nanotubes; encapsulation; photoresponse azafullerenes; carbon nanotubes; encapsulation; photoresponse
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Li, Y.; Kaneko, T.; Hatakeyama, R. C59N Peapods Sensing the Temperature. Sensors 2013, 13, 966-974.

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