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Studies on Charging Processes and Capacitances of Oxidized Polyethylenedioxythiophene Films
Author(s) -
PingPing She,
ZhengHao Wang
Publication year - 2005
Publication title -
chinese journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.28
H-Index - 41
eISSN - 1614-7065
pISSN - 1001-604X
DOI - 10.1002/cjoc.200590806
Subject(s) - chemistry , pedot:pss , chronoamperometry , capacitance , solution of schrödinger equation for a step potential , range (aeronautics) , diffusion , electrode , chemical physics , optoelectronics , chemical engineering , nanotechnology , thermodynamics , composite material , cyclic voltammetry , electrochemistry , materials science , physics , engineering
Abstract In this paper, the chronoamperometry was used to study the charging processes of polyethylenedioxythiophene (PEDOT) modified electrodes in the potential range where PEDOT was in the oxidized state. The results show that the charging behaviors of the PEDOT films are well agreed with the exhausted finite diffusion model. The dependence of the capacitance values of the films on potential and concentration of solution was also studied in this potential range.