期刊
JOURNAL OF APPLIED PHYSICS
卷 117, 期 21, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.4921930
关键词
-
资金
- Ministry of Science and Technology, Taiwan [103-2112-M-018-003-MY3]
The effect of incorporation of ethylene glycol (EG) into poly(3,4-ethylenedioxythiophene): poly (styrenesulfonate) (PEDOT: PSS) on electron phonon coupling and conductivity is investigated. It is shown that the carrier density (N-C) increases significantly and the carrier mobility (mu) increases slightly at 300 K. The increased intensity of the Raman spectrum between 1400 and 1450 cm(-1), following EG treatment (that is, the quinoid-dominated structures of the PEDOT chain), leads to an increase in the number of polarons (bipolarons), which leads to an increase in NC. In addition, mu in PEDOT: PSS samples with or without EG addition exhibits a strong temperature dependence, which demonstrates the dominance of tunneling (hopping) at low (high) temperatures. The high conductivity of PEDOT: PSS samples with the addition of EG is attributed to the combined effect of the modification of the electron-phonon coupling and the increase in N-C (mu). (C) 2015 AIP Publishing LLC.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据