A facile dedoping approach for effectively tuning thermoelectricity and acidity of PEDOT:PSS films

被引：121

作者：

Tsai, Tsung-Che ^{[1
]}

Chang, Hsiu-Cheng ^{[1
]}

Chen, Chun-Hua ^{[1
]}

Huang, Yi-Chia ^{[1
]}

Whang, Wha-Tzong ^{[1
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu 30010, Taiwan

来源：

ORGANIC ELECTRONICS | 2014年 / 15卷 / 03期

关键词：

Organic thermoelectric; Dedoping; pH Tuning; POWER; CONDUCTIVITY; ENHANCEMENT; PERFORMANCE; FIGURE; MERIT;

D O I：

10.1016/j.orgel.2013.12.023

中图分类号：

T [工业技术];

学科分类号：

08 ;

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.

引用

页码：641 / 645

页数：5

共 23 条

[1] ELECTRIC-CONDUCTIVITY AND THERMOELECTRIC-POWER OF VARIOUS POLYPYRROLES [J].

BENDER, K ;

GOGU, E ;

HENNIG, I ;

SCHWEITZER, D ;

MUENSTEDT, H .

SYNTHETIC METALS, 1987, 18 (1-3) :85-88

[2]

Brutting W., 2005, Physics of Organic Semiconductors

[3] Tuning the Thermoelectric Properties of Conducting Polymers in an Electrochemical Transistor [J].

Bubnova, Olga ;

Berggren, Magnus ;

Crispin, Xavier .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2012, 134 (40) :16456-16459

[4]

Bubnova O, 2011, NAT MATER, V10, P429, DOI [10.1038/NMAT3012, 10.1038/nmat3012]

[5] The Thermoelectric Performance of Poly(3,4-ethylenedi oxythiophene)/Poly(4-styrenesulfonate) Thin Films [J].

Chang, Kuei-Chien ;

Jeng, Ming-Shan ;

Yang, Chang-Chung ;

Chou, Ya-Wen ;

Wu, Shih-Kuo ;

Thomas, Marin Andrew ;

Peng, Yen-Chun .

JOURNAL OF ELECTRONIC MATERIALS, 2009, 38 (07) :1182-1188

[6] Modification of PEDOT: PSS as hole injection layer in polymer LEDs [J].

de Kok, MM ;

Buechel, M ;

Vulto, SIE ;

van de Weijer, P ;

Meulenkamp, EA ;

de Winter, SHPM ;

Mank, AJG ;

Vorstenbosch, HJM ;

Weijtens, CHL ;

van Elsbergen, V .

PHYSICA STATUS SOLIDI A-APPLICATIONS AND MATERIALS SCIENCE, 2004, 201 (06) :1342-1359

[7] Research progress on polymer-inorganic thermoelectric nanocomposite materials [J].

Du, Yong ;

Shen, Shirley Z. ;

Cai, Kefeng ;

Casey, Philip S. .

PROGRESS IN POLYMER SCIENCE, 2012, 37 (06) :820-841

[8]

Elschner A., 2011, PEDOT: principles and applications of an intrinsically conductive polymer, V1

[9] In situ spectroelectrochemical Raman studies of poly(3,4-ethylenedioxythiophene) (PEDT) [J].

Garreau, S ;

Louarn, G ;

Buisson, JP ;

Froyer, G ;

Lefrant, S .

MACROMOLECULES, 1999, 32 (20) :6807-6812

[10] Thermoelectric figure-of-merit of iodine-doped copolymer of phenylenevinylene with dialkoxyphenylenevinylene [J].

Hiroshige, Yuji ;

Ookawa, Makoto ;

Toshima, Naoki .

SYNTHETIC METALS, 2007, 157 (10-12) :467-474

← 1 2 3 →