Heat conduction in conducting polyaniline nanofibers

被引：16

作者：

Nath, Chandrani ^{[1
]}

Kumar, A. ^{[1
]}

Syu, K. -Z. ^{[2
]}

Kuo, Y. -K. ^{[2
]}

机构：

[1] Tezpur Univ, Dept Phys, Tezpur 784028, India

[2] Natl Dong Hwa Univ, Dept Phys, Hualien 974, Taiwan

来源：

APPLIED PHYSICS LETTERS | 2013年 / 103卷 / 12期

关键词：

LATTICE THERMAL-CONDUCTIVITY; TO-METAL TRANSITION; SILICATE-GLASSES; AMORPHOUS MATERIALS; CONJUGATED POLYMER; TRANSPORT; PHONONS; CONFINEMENT; CRYSTALS; MOBILITY;

D O I：

10.1063/1.4821656

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Thermal conductivity and specific heat of conducting polyaniline nanofibers are measured to identify the nature of heat carrying modes combined with their inhomogeneous structure. The low temperature thermal conductivity results reveal crystalline nature while the high temperature data confirm the amorphous nature of the material suggesting heterogeneous model for conducting polyaniline. Extended acoustic phonons dominate the low temperature (<100 K) heat conduction, while localized optical phonons hopping, assisted by the extended acoustic modes, account for the high temperature (>100 K) heat conduction. (C) 2013 AIP Publishing LLC.

引用

页数：5

共 42 条

[31] THERMAL-CONDUCTIVITY OF AMORPHOUS SOLIDS ABOVE THE PLATEAU - MOLECULAR-DYNAMICS STUDY [J].