期刊
APPLIED SURFACE SCIENCE
卷 256, 期 5, 页码 1304-1308出版社
ELSEVIER
DOI: 10.1016/j.apsusc.2009.10.031
关键词
Electrochemical Impedance Spectroscopy; Conducting Polymers; PEDOT; Doping level; Capacitive charging
类别
资金
- NSF [CHE-0403806]
We report an electrochemical impedance spectroscopy (EIS) based method to measure the doping level of conducting polymers. Using EIS the Faradaic current and the capacitive charging current can be separated without relying on any unverifiable assumptions. We demonstrate the method for three types of conducting polymer thin films that are the basis for many commercial applications (poly(3,4-ethylenedioxythiophene), poly-3-hexylthiophene and polypyrrole). (C) 2009 Elsevier B. V. All rights reserved.
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