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Study on Poly(3,4-e...
Study on Poly(3,4-ethylene dioxythiophene)-Poly(styrenesulfonate) as a plastic counter electrode in dye sensitized solar cells
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- Kanciurzewska, Anna (författare)
- Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap
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Dobruchowska, E. (författare)
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- Baranzahi, Amir (författare)
- Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap
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visa fler...
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- Carlegrim, Elin (författare)
- Linköpings universitet,Tekniska högskolan,Institutionen för teknik och naturvetenskap
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- Fahlman, Mats (författare)
- Linköpings universitet,Tekniska högskolan,Ytors Fysik och Kemi
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Girtu, M. A. (författare)
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visa färre...
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(creator_code:org_t)
- 2007
- 2007
- Engelska.
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Ingår i: Journal of Optoelectronics and Advanced Materials. - 1454-4164 .- 1841-7132. ; 9:4, s. 1052-1059
- Relaterad länk:
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https://urn.kb.se/re...
Abstract
Ämnesord
Stäng
- Dye sensitized solar cells with PEDOT-PSS coated directly on flexible polyester substrate as counter electrode have been fabricated. The behavior of such plastic counter electrode in the presence of I/I-3 redox electrolyte has been investigated with X-ray photoelectron spectroscopy. We have found that some of iodine species are "trapped" within the PEDOT-PSS layer. The presence of I-3, I-2 and PEDOT charge transfer complexes with iodine species may block the surface of the electrode. Furthermore, the PEDOT may be further oxidized (p-doped) during cell operation, which in turn may cause overoxidation and loss of conductivity in the PEDOT-PSS film. Additionally, the interactions between PEDOT and iodine species may be enlarged because of the partial loss of PSS protective counter ion. That has resulted in decrease of PEDOT-PSS catalytic activity for reduction of I-3 to I in the redox electrolyte and has caused worse cell performance than in case of DSSC with Pt counter electrode.
Nyckelord
- dye-sensitized solar cells
- plastic counter electrode
- PEDOT-PSS
- photoelectron spectroscopy
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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