Effect of solvent on electrical conductivity and gas sensitivity of PEDOT: PSS polymer composite films | Health & Environmental Research Online (HERO)

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Citation
Tags

HERO ID

4432311

Reference Type

Journal Article

Title

Effect of solvent on electrical conductivity and gas sensitivity of PEDOT: PSS polymer composite films

Author(s)

Hwang, JunS; Oh, TaeH; Kim, SeH; Han, SSoo; Lee, SJun; Lee, SeG; Lee, YJae; Jang, SS

Year

2015

Is Peer Reviewed?

Yes

Journal

Journal of Applied Polymer Science
ISSN: 0021-8995
EISSN: 1097-4628

Volume

132

Issue

DOI

10.1002/app.42628

Web of Science Id

WOS:000358615600018

Abstract

Poly(3,4-ethylenedioxythiophene)/poly(styrene sulfonate) (PEDOT:PSS) was blended with polyethylene oxide (PEO) and polyvinyl alcohol (PVA) and composite film was cast. Additional solvents of dimethyl sulfoxide (DMSO) and ethylene glycol (EG) were mixed and their effects on electrical conductivity and structural changes were investigated. The electrical conductivity increased in response to the additional solvent, leading to an increase in the PEDOT ratio relative to the control. PEDOT:PSS/PEO composite film had a much higher electrical conductivity than PEDOT:PSS/PVA. When blended with PEO, the quinoid structure revealed by Raman spectroscopy increased relative to the PVA-blended case, indicating higher electrical conductivity. The current-voltage response and gas sensitivity showed much better performance in PEDOT:PSS/PEO/DMSO composite film. (c) 2015 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2015, 132, 42628.

Keywords

blends; films; structure-property relations