Abstract
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 (N2) on the structure and thermoelectric properties of PEDOT:PSS after treatment with various acids at optimized temperatures. After treatment with acids followed by N2 gas-passing, electrical conductivity enhances significantly. Therefore, N2 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 N2 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.
| Original language | English |
|---|---|
| Pages (from-to) | 13534-13542 |
| Number of pages | 9 |
| Journal | Journal of Materials Science: Materials in Electronics |
| Volume | 30 |
| Issue number | 14 |
| DOIs | |
| Publication status | Published - Jul 30 2019 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Atomic and Molecular Physics, and Optics
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films. / Myint, May Thu Zar; Inoue, Hirotaka; Ichimura, Susumu; Nishikawa, Takeshi; Nishina, Yuta; Kyaw, Aung Ko Ko; Hayashi, Yasuhiko.
In: Journal of Materials Science: Materials in Electronics, Vol. 30, No. 14, 30.07.2019, p. 13534-13542.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Influence of pressure of nitrogen gas on structure and thermoelectric properties of acid-treated PEDOT:PSS films
AU - Myint, May Thu Zar
AU - Inoue, Hirotaka
AU - Ichimura, Susumu
AU - Nishikawa, Takeshi
AU - Nishina, Yuta
AU - Kyaw, Aung Ko Ko
AU - Hayashi, Yasuhiko
PY - 2019/7/30
Y1 - 2019/7/30
N2 - 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 (N2) on the structure and thermoelectric properties of PEDOT:PSS after treatment with various acids at optimized temperatures. After treatment with acids followed by N2 gas-passing, electrical conductivity enhances significantly. Therefore, N2 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 N2 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.
AB - 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 (N2) on the structure and thermoelectric properties of PEDOT:PSS after treatment with various acids at optimized temperatures. After treatment with acids followed by N2 gas-passing, electrical conductivity enhances significantly. Therefore, N2 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 N2 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.
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UR - http://www.scopus.com/inward/citedby.url?scp=85068822294&partnerID=8YFLogxK
U2 - 10.1007/s10854-019-01721-2
DO - 10.1007/s10854-019-01721-2
M3 - Article
AN - SCOPUS:85068822294
VL - 30
SP - 13534
EP - 13542
JO - Journal of Materials Science: Materials in Electronics
JF - Journal of Materials Science: Materials in Electronics
SN - 0957-4522
IS - 14
ER -