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

Title
Effect of solvent on electrical conductivity and gas sensitivity of PEDOT: PSS polymer composite films
Authors
Hwang, Jun SungOh, Tae HwanKim, Se HyunHan, Sung SooLee, Sung JunLee, Se GeunLee, Young JaeJang, Seung Soon
DGIST Authors
Lee, Sung JunLee, Se Geun
Issue Date
2015-10-20
Citation
Journal of Applied Polymer Science, 132(40)
Type
Article
Article Type
Article
Keywords
BlendingBlendsComposite FilmsConducting PolymersCurrent-Voltage ResponseDimethyl Sulfoxide (DMSO)Effect of SolventsElectric ConductivityElectrical ConductivityEthyleneEthylene GlycolFilmsGas Sensing ElectrodesOrganic SolventsPoly (Vinyl Alcohol) (PVA)Poly(3,4-Ethylenedioxythiophene) (PEDOT)Polyethylene Oxide (PEO)Polyethylene OxidesPolymer FilmsSolventsStructure-Property RelationsStructure Property RelationStyrene
ISSN
0021-8995
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. © 2015 Wiley Periodicals, Inc.
URI
http://hdl.handle.net/20.500.11750/5162
DOI
10.1002/app.42628
Publisher
Wiley Blackwell
Related Researcher
Files:
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Collection:
Magnet-Controlled Materials Research Group1. Journal Articles


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