Electron transport properties of air-exposed one-dimensional uneven peanut-shaped C60 polymer films

Sou Ryuzaki; Masahiro Nishiyama; Jun Onoe

doi:10.1016/j.diamond.2012.12.004

Electron transport properties of air-exposed one-dimensional uneven peanut-shaped C₆₀ polymer films

Sou Ryuzaki, Masahiro Nishiyama, Jun Onoe

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

The electron transport properties of an air-exposed one-dimensional (1D) uneven peanutshaped C₆₀ polymer film were investigated by examining the temperature dependence (30-350 K) of the current-voltage (I-V) characteristics under ultrahigh vacuum conditions. Arrhenius plots of the resistance as a function of temperature showed two different electron conduction mechanisms. At temperatures above 140 K, it was found that electrons are conducted via a thermal excitation hopping mechanism, and the activation energy changed discontinuously from 124 to 99 meV at ca. 190 K because of a change in the 1D polymer chain-chain interactions. On the other hand, at temperatures below 100 K, the electron conduction behavior is consistent with a 2D variable-range hopping mechanism.

Original language	English
Pages (from-to)	12-15
Number of pages	4
Journal	Diamond and Related Materials
Volume	33
DOIs	https://doi.org/10.1016/j.diamond.2012.12.004
Publication status	Published - Jan 23 2013
Externally published	Yes

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Chemistry(all)
Mechanical Engineering
Materials Chemistry
Electrical and Electronic Engineering

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10.1016/j.diamond.2012.12.004

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title = "Electron transport properties of air-exposed one-dimensional uneven peanut-shaped C60 polymer films",

abstract = "The electron transport properties of an air-exposed one-dimensional (1D) uneven peanutshaped C60 polymer film were investigated by examining the temperature dependence (30-350 K) of the current-voltage (I-V) characteristics under ultrahigh vacuum conditions. Arrhenius plots of the resistance as a function of temperature showed two different electron conduction mechanisms. At temperatures above 140 K, it was found that electrons are conducted via a thermal excitation hopping mechanism, and the activation energy changed discontinuously from 124 to 99 meV at ca. 190 K because of a change in the 1D polymer chain-chain interactions. On the other hand, at temperatures below 100 K, the electron conduction behavior is consistent with a 2D variable-range hopping mechanism.",

author = "Sou Ryuzaki and Masahiro Nishiyama and Jun Onoe",

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T1 - Electron transport properties of air-exposed one-dimensional uneven peanut-shaped C60 polymer films

AU - Ryuzaki, Sou

AU - Nishiyama, Masahiro

AU - Onoe, Jun

PY - 2013/1/23

Y1 - 2013/1/23

N2 - The electron transport properties of an air-exposed one-dimensional (1D) uneven peanutshaped C60 polymer film were investigated by examining the temperature dependence (30-350 K) of the current-voltage (I-V) characteristics under ultrahigh vacuum conditions. Arrhenius plots of the resistance as a function of temperature showed two different electron conduction mechanisms. At temperatures above 140 K, it was found that electrons are conducted via a thermal excitation hopping mechanism, and the activation energy changed discontinuously from 124 to 99 meV at ca. 190 K because of a change in the 1D polymer chain-chain interactions. On the other hand, at temperatures below 100 K, the electron conduction behavior is consistent with a 2D variable-range hopping mechanism.

AB - The electron transport properties of an air-exposed one-dimensional (1D) uneven peanutshaped C60 polymer film were investigated by examining the temperature dependence (30-350 K) of the current-voltage (I-V) characteristics under ultrahigh vacuum conditions. Arrhenius plots of the resistance as a function of temperature showed two different electron conduction mechanisms. At temperatures above 140 K, it was found that electrons are conducted via a thermal excitation hopping mechanism, and the activation energy changed discontinuously from 124 to 99 meV at ca. 190 K because of a change in the 1D polymer chain-chain interactions. On the other hand, at temperatures below 100 K, the electron conduction behavior is consistent with a 2D variable-range hopping mechanism.

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