Thermoelectric properties and conduction mechanism of conductive polythiophenes

Yoshikazu Shinohara; Yukihiro Isoda; Kentaro Hiraishi; Akito Masuhara; Hidetoshi Oikawa

doi:10.1504/IJMPT.2011.044915

Thermoelectric properties and conduction mechanism of conductive polythiophenes

Yoshikazu Shinohara, Yukihiro Isoda, Kentaro Hiraishi, Akito Masuhara, Hidetoshi Oikawa

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

Abstract

In this study, we synthesised conductive polymers of polythiophene series and evaluated their thermoelectric properties in the temperature range from 88 K to 350 K. Poly-hexylthiophenes showed a conduction mechanism of the nearest-neighbour distance hopping (NDH) in the measured temperature range, while the main conduction mechanism of polythiophenes was the variable range hopping (VRH). Only polythiophenes with low electrical conductivity (such as 0.02 S/cm) presented NDH at temperatures of below 200 K. The conduction mechanism is changed by the distance between the thiophene main chains and the kinetic energy of carriers.

Original language	English
Pages (from-to)	66-73
Number of pages	8
Journal	International Journal of Materials and Product Technology
Volume	42
Issue number	1-2
DOIs	https://doi.org/10.1504/IJMPT.2011.044915
Publication status	Published - 2011 Jan

Keywords

Conduction mechanism
Conductive polymer
Thermoelectric material

ASJC Scopus subject areas

Safety, Risk, Reliability and Quality
Mechanics of Materials
Mechanical Engineering
Industrial and Manufacturing Engineering

Access to Document

10.1504/IJMPT.2011.044915

Cite this

@article{8c0b259062954bcea5acd7d86ec39676,

title = "Thermoelectric properties and conduction mechanism of conductive polythiophenes",

abstract = "In this study, we synthesised conductive polymers of polythiophene series and evaluated their thermoelectric properties in the temperature range from 88 K to 350 K. Poly-hexylthiophenes showed a conduction mechanism of the nearest-neighbour distance hopping (NDH) in the measured temperature range, while the main conduction mechanism of polythiophenes was the variable range hopping (VRH). Only polythiophenes with low electrical conductivity (such as 0.02 S/cm) presented NDH at temperatures of below 200 K. The conduction mechanism is changed by the distance between the thiophene main chains and the kinetic energy of carriers.",

keywords = "Conduction mechanism, Conductive polymer, Thermoelectric material",

author = "Yoshikazu Shinohara and Yukihiro Isoda and Kentaro Hiraishi and Akito Masuhara and Hidetoshi Oikawa",

year = "2011",

month = jan,

doi = "10.1504/IJMPT.2011.044915",

language = "English",

volume = "42",

pages = "66--73",

journal = "International Journal of Materials and Product Technology",

issn = "0268-1900",

publisher = "Inderscience Enterprises Ltd",

number = "1-2",

}

TY - JOUR

T1 - Thermoelectric properties and conduction mechanism of conductive polythiophenes

AU - Shinohara, Yoshikazu

AU - Isoda, Yukihiro

AU - Hiraishi, Kentaro

AU - Masuhara, Akito

AU - Oikawa, Hidetoshi

PY - 2011/1

Y1 - 2011/1

N2 - In this study, we synthesised conductive polymers of polythiophene series and evaluated their thermoelectric properties in the temperature range from 88 K to 350 K. Poly-hexylthiophenes showed a conduction mechanism of the nearest-neighbour distance hopping (NDH) in the measured temperature range, while the main conduction mechanism of polythiophenes was the variable range hopping (VRH). Only polythiophenes with low electrical conductivity (such as 0.02 S/cm) presented NDH at temperatures of below 200 K. The conduction mechanism is changed by the distance between the thiophene main chains and the kinetic energy of carriers.

AB - In this study, we synthesised conductive polymers of polythiophene series and evaluated their thermoelectric properties in the temperature range from 88 K to 350 K. Poly-hexylthiophenes showed a conduction mechanism of the nearest-neighbour distance hopping (NDH) in the measured temperature range, while the main conduction mechanism of polythiophenes was the variable range hopping (VRH). Only polythiophenes with low electrical conductivity (such as 0.02 S/cm) presented NDH at temperatures of below 200 K. The conduction mechanism is changed by the distance between the thiophene main chains and the kinetic energy of carriers.

KW - Conduction mechanism

KW - Conductive polymer

KW - Thermoelectric material

UR - http://www.scopus.com/inward/record.url?scp=84857308032&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84857308032&partnerID=8YFLogxK

U2 - 10.1504/IJMPT.2011.044915

DO - 10.1504/IJMPT.2011.044915

M3 - Article

AN - SCOPUS:84857308032

VL - 42

SP - 66

EP - 73

JO - International Journal of Materials and Product Technology

JF - International Journal of Materials and Product Technology

SN - 0268-1900

IS - 1-2

ER -

Thermoelectric properties and conduction mechanism of conductive polythiophenes

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this