Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films

Myint, May Thu Zar1,2; Inoue, Hirotaka1; Ichimura, Susumu3; Nishikawa, Takeshi1; Nishina, Yuta1; Kyaw, Aung Ko Ko4; Hayashi, Yasuhiko1

2019-07

10.1007/s10854-019-01721-2

JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS   影响因子和分区

0957-4522

1573-482X

Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) is the most commonly investigated conductive polymer due to its unique thermoelectric properties. Several post treatments using various acids have been reported to improve the thermoelectric properties of PEDOT:PSS. In most articles, however, only the role of acids on the structure and thermoelectric properties of PEDOT:PSS were reported. In this article, we report the major role of the pressure of nitrogen gas (N-2) on the structure and thermoelectric properties of PEDOT:PSS after treatment with various acids at optimized temperatures. After treatment with acids followed by N-2 gas-passing, electrical conductivity enhances significantly. Therefore, N-2 gas-passing after acid treatments results in higher thermoelectric properties than other traditional acid treatment methods. The enhancement in electrical conductivity is attributed to the removal of insulating PSS and the conformational change of the PEDOT chain. Furthermore, the pressure of N-2 is responsible for the additional conformation of PEDOT chain, favoring the linear orientation of the PEDOT structure and resulting in an improvement of the electrical conductivity.

SCI ; EI

英语

通讯

Shenzhen Peacock Team Project[KQTD2016030111203005]

Engineering ; Materials Science ; Physics

Engineering, Electrical & Electronic ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000476518000071

SPRINGER

20192907190433

Conducting polymers ; Electric conductivity ; Nitrogen ; Structural properties ; Thermoelectric equipment

Structural Design:408 ; Thermoelectric Energy:615.4 ; Electricity: Basic Concepts and Phenomena:701.1 ; Conducting Materials:708.2 ; Chemical Products Generally:804 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

1.Okayama Univ, Grad Sch Nat Sci & Technol, Okayama 7008530, Japan
2.Univ Technol Yatanarpon Cyber City, Fac Adv Mat Engn, Pyin Oo Lwin Dist, Mandalay, Myanmar
3.Nagoya Ind Promot Corp, Atsuta Ku, 3-4-41 Rokuban, Nagoya, Aichi 4560058, Japan
4.Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen 518055, Peoples R China

Myint, May Thu Zar,Inoue, Hirotaka,Ichimura, Susumu,et al. Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films[J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,2019,30(14):13534-13542.

Myint, May Thu Zar.,Inoue, Hirotaka.,Ichimura, Susumu.,Nishikawa, Takeshi.,Nishina, Yuta.,...&Hayashi, Yasuhiko.(2019).Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films.JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS,30(14),13534-13542.

Myint, May Thu Zar,et al."Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films".JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS 30.14(2019):13534-13542.