C59N peapods sensing the temperature

Yongfeng Li, Toshiro Kaneko, Rikizo Hatakeyama

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


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.

Original languageEnglish
Pages (from-to)966-974
Number of pages9
Issue number1
Publication statusPublished - 2013 Jan


  • Azafullerenes
  • Carbon nanotubes
  • Encapsulation
  • Photoresponse


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