Synergistic Impacts of Electrolyte Adsorption on the Thermoelectric Properties of Single-Walled Carbon Nanotubes

被引：37

作者：

Nakano, Motohiro ^{[1
]}

Nakashima, Takuya ^{[1
]}

Kawai, Tsuyoshi ^{[1
,2
]}

Nonoguchi, Yoshiyuki ^{[1
,3
]}

机构：

[1] Nara Inst Sci & Technol NAIST, Grad Sch Mat Sci, Ikoma 6300192, Japan

[2] CEMES CNRS, NAIST CEMES Int Collaborat Lab, F-31055 Toulouse, France

[3] Japan Sci & Technol Agcy JST, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

来源：

SMALL | 2017年 / 13卷 / 29期

关键词：

SEEBECK COEFFICIENT; HIGH-PERFORMANCE; POLYMER; COMPOSITES; COMPLEX; THERMOPOWER; NETWORKS; MODULES; PEDOT;

D O I：

10.1002/smll.201700804

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Single-walled carbon nanotubes are promising candidates for light-weight and flexible energy materials. Recently, the thermoelectric properties of single-walled carbon nanotubes have been dramatically improved by ionic liquid addition; however, controlling factors remain unsolved. Here the thermoelectric properties of single-walled carbon nanotubes enhanced by electrolytes are investigated. Complementary characterization with absorption, Raman, and X-ray photoelectron spectroscopy reveals that shallow hole doping plays a partial role in the enhanced electrical conductivity. The molecular factors controlling the thermoelectric properties of carbon nanotubes are systematically investigated in terms of the ionic functionalities of ionic liquids. It is revealed that appropriate ionic liquids show a synergistic enhancement in conductivity and the Seebeck coefficient. The discovery of significantly precise doping enables the generation of thermoelectric power factor exceeding 460 mu W m(-1) K-2.

引用

页数：8

共 59 条

[1] Tailored semiconducting carbon nanotube networks with enhanced thermoelectric properties [J].