標題: A facile dedoping approach for effectively tuning thermoelectricity and acidity of PEDOT:PSS films
作者: Tsai, Tsung-Che
Chang, Hsiu-Cheng
Chen, Chun-Hua
Huang, Yi-Chia
Whang, Wha-Tzong
材料科學與工程學系
Department of Materials Science and Engineering
關鍵字: Organic thermoelectric;Dedoping;pH Tuning
公開日期: 1-三月-2014
摘要: A facile approach namely controlling the pH level of 5 wt% dimethyl sulfoxide (DMSO) doped poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) solution with sodium hydroxide (NaOH) was utilized for the first time in successfully optimizing the thermoelectric conversion efficiency of PEDOT:PSS films. The largely varied Seebeck coefficients and electrical conductivities of the pH controlled PEDOT:PSS films which could thus construct a beneficial curve for locating the optimized power factor are clearly shown from the significant changes of the carrier concentration via the dedoping of PEDOT. The correlation between pH value and carrier concentration as well as the power factor is experimentally found with numerical description covering a full pH range. The applied technique and the resulting optimized thermoelectric properties and possible bio-compatibility not only provide a fundamental understanding of the thermoelectric conducting polymers but widely disclose a variety of potential applications in the future. (C) 2014 Elsevier B. V. All rights reserved.
URI: http://dx.doi.org/10.1016/j.orgel.2013.12.023
http://hdl.handle.net/11536/23764
ISSN: 1566-1199
DOI: 10.1016/j.orgel.2013.12.023
期刊: ORGANIC ELECTRONICS
Volume: 15
Issue: 3
起始頁: 641
結束頁: 645
顯示於類別:期刊論文


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