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In Situ Formation o...
In Situ Formation of MoO3 in PEDOT:PSS Matrix: A Facile Way to Produce a Smooth and Less Hygroscopic Hole Transport Layer for Highly Stable Polymer Bulk Heterojunction Solar Cells
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- Shao, Shuyan (author)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
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- Liu, Jian (author)
- Chinese Academic Science, Peoples R China
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- Bergqvist, Jonas (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Shi, Shengwei (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska högskolan
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- Veit, Clemens (author)
- University of Freiburg, Germany
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- Wuerfel, Uli (author)
- University of Freiburg, Germany
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- Xie, Zhiyuan (author)
- Chinese Academic Science, Peoples R China
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- Zhang, Fengling (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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(creator_code:org_t)
- 2012-10-30
- 2013
- English.
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In: Advanced Energy Materials. - : Wiley-VCH Verlag Berlin. - 1614-6832 .- 1614-6840. ; 3:3, s. 349-355
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- A solution-processed neutral hole transport layer is developed by in situ formation of MoO3 in aqueous PEDOT:PSS dispersion (MoO3-PEDOT:PSS). This MoO3-PEDOT:PSS composite film takes advantage of both the highly conductive PEDOT:PSS and the ambient conditions stability of MoO3; consequently it possesses a smooth surface and considerably reduced hygroscopicity. The resulting bulk heterojunction polymer solar cells (BHJ PSC) based on poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (TQ1):[6,6]-phenyl-C71-butyric acid methyl ester (PC70BM) blends using MoO3-PEDOT:PSS composite film as hole transport layer (HTL) show considerable improvement in power conversion efficiency (PCE), from 5.5% to 6.4%, compared with the reference pristine PEDOT:PSS-based device. More importantly, the device with MoO3-PEDOT:PSS HTL shows considerably improved stability, with the PCE remaining at 80% of its original value when stored in ambient air in the dark for 10 days. In comparison, the reference solar cell with PEDOT:PSS layer shows complete failure within 10 days. This MoO3-PEDOT:PSS implies the potential for low-cost roll-to-roll fabrication of high-efficiency polymer solar cells with long-term stability at ambient conditions.
Keyword
- polymer solar cells
- bulk heterojunction
- hole transport layer
- hygroscopicity
- ambient stability
- TECHNOLOGY
- TEKNIKVETENSKAP
Publication and Content Type
- ref (subject category)
- art (subject category)
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