Effect of solvent on carrier transport in poly(3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) studied by terahertz and infrared-ultraviolet spectroscopy

被引：73

作者：

Yamashita, Masatsugu ^{[1
]}

Otani, Chiko ^{[1
]}

Shimizu, Masahiro ^{[2
]}

Okuzaki, Hidenori ^{[3
]}

机构：

[1] RIKEN, Aoba Ku, Tokyo 980845, Japan

[2] Tokyo Elect, Akasaka Biz Tower, Minato Ku, Tokyo 1076325, Japan

[3] Univ Yamanashi, Yamanashi 4008511, Japan

来源：

APPLIED PHYSICS LETTERS | 2011年 / 99卷 / 14期

关键词：

carrier mobility; infrared spectra; polymers; terahertz wave spectra; ultraviolet spectra; TIME-DOMAIN SPECTROSCOPY; POLYANILINE; FILMS; METAL;

D O I：

10.1063/1.3647574

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The effect of solvent such as ethylene glycol (EG) on the carrier transport in poly (3,4-ethylenedioxythiophene)/poly(4-styrenesulfonate) (PEDOT/PSS) was studied by the combination of terahertz (THz) time-domain transmission spectroscopy (0.1-3 THz) and broadband reflectance spectroscopy (4-800 THz). While the broadband reflectance showed a plasma edge in the near-infrared, the frequency dependence of the THz conductivity of PEDOT/PSS indicated weakly localized carrier behavior. The simultaneous fitting of both spectra by the localization-modified Drude model allowed us to conclude that the significant increase in conductivity with the addition of EG is due to improved carrier mobility in the PEDOT/PSS. (C) 2011 American Institute of Physics. [doi:10.1063/1.3647574]

引用

页数：3

共 18 条

[1] The origin of the high conductivity of poly(3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT- PSS) plastic electrodes [J].