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Light Induced Damag...
Light Induced Damage in Poly(3,4-ethylenedioxythiophene) and its Derivatives Studied by Photoelectron Spectroscopy
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- Marciniak Braun, Slawomir (författare)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
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- Crispin, Xavier (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Uvdal, Kajsa (författare)
- Linköpings universitet,Sensorvetenskap och Molekylfysik,Tekniska högskolan
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- Trzcinski, M. (författare)
- Institute of Mathematics and Physics, Bydgoszcz, Poland
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- Birgerson, J. (författare)
- LCD Technology, Dalarna University, Borlänge, Sweden
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- Groenendaal, L. (författare)
- Agfa-Gevaert N. V., R&D Materials/Chemistry Department, Mortsel, Belgium
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- Louwet, F. (författare)
- Agfa-Gevaert N. V., R&D Materials/Chemistry Department, Mortsel, Belgium
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- Salaneck, William R. (författare)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
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(creator_code:org_t)
- Elsevier, 2004
- 2004
- Engelska.
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Ingår i: Synthetic metals. - : Elsevier. - 0379-6779 .- 1879-3290. ; 141:1-2, s. 67-73
- Relaterad länk:
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http://urn.kb.se/res...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Poly(3,4-ethylenedioxythiophene), usually known as PEDOT, and derivatives have attracted significant interest because of their high electrical conductivity. This electric property, however, deteriorates upon exposure to solar radiation. X-ray photoelectron spectroscopy (XPS) has been used to study the UV-light-induced chemical changes in doped PEDOT, as well as in both neutral and doped forms of its alkylated derivative—PEDOT-C14H29. Analysis of the XPS data indicates an oxidation of the sulfur in the thiophene ring. Apparently, photo-oxidation leads to the formation of sulfon groups, SO2, resulting in a disruption of π-conjugation in PEDOT, which there by diminishes the conductivity of the organic layer. This hypothesis is supported by the results of a study of model molecules for pristine and the oxidized PEDOT unit: 3,4 ethylenedioxythiophene (EDOT) and 3,4 ethylenedioxythiophene and S-dioxide (EDOT-SO2), respectively.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Nyckelord
- Poly(3
- 4-ethylenedioxythiophene)
- X-ray photoelectron spectroscopy
- Degradation
- Photo-oxidation
- Sulfon
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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