High-performance negative differential resistance behavior in fullerenes encapsulated double-walled carbon nanotubes

Y. F. Li, Toshiro Kaneko, R. Hatakeyama

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

The authors report negative differential resistance (NDR) characteristics observed in nanodevices constructed using three types of fullerenes (C 60, C70, and C84) encapsulated metallic double-walled carbon nanotubes. The NDR behavior persists from room temperature (300 K) to lower temperatures, and a significantly high on-off peak-to-valley current ratio is observed for many of the devices examined. The fullerene species exerts a strong influence on the peak voltage of the NDR, which exhibits a linear decrease with increasing fullerene size. The observed current-voltage curves are highly reproducible during measurements, and fully reversible upon change in the bias sweep direction. In addition, the peak current of the NDR is found to increase significantly under light illumination and is recoverable in the absence of light, which indicates potential for applications such as logic optoelectronic devices.

Original languageEnglish
Article number124316
JournalJournal of Applied Physics
Volume106
Issue number12
DOIs
Publication statusPublished - 2009 Jan 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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