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A Fullerene Alloy B...
A Fullerene Alloy Based Photovoltaic Blend with a Glass Transition Temperature above 200 °C
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- Diaz de Zerio Mendaza, Amaia, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Melianas, A. (author)
- Linköpings universitet,Linköping University
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- Nugroho, Ferry, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Bäcke, Olof, 1984 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Olsson, Eva, 1960 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Langhammer, Christoph, 1978 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Inganäs, Olle (author)
- Linköpings universitet,Linköping University
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- Müller, Christian, 1980 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- 2017
- 2017
- English.
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In: Journal of Materials Chemistry A. - 2050-7488 .- 2050-7496. ; 5:8, s. 4156-4162
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Abstract
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- Organic solar cells with a high degree of thermal stability require bulk-heterojunction blends that feature a high glass transition, which must occur considerably above the temperatures encountered during device fabrication and operation. Here, we demonstrate for the first time a polymer : fullerene blend with a glass transition temperature above 200 °C, which we determine by plasmonic nanospectroscopy. We achieve this strong tendency for glass formation through the use of an alloy of neat, unsubstituted C60 and C70, which we combine with the fluorothieno-benzodithiophene copolymer PTB7. A stable photovoltaic performance of PTB7 : C60 : C70 ternary blends is preserved despite annealing the active layer at up to 180 °C, which coincides with the onset of the glass transition. Rapid deterioration of the power conversion efficiency from initially above 5% only occurs upon exceeding the glass transition temperature of 224 °C of the ternary blend.
Subject headings
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
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- ref (subject category)
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Diaz de Zerio Me ...
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Melianas, A.
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Nugroho, Ferry, ...
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Bäcke, Olof, 198 ...
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Olsson, Eva, 196 ...
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Langhammer, Chri ...
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Inganäs, Olle
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Müller, Christia ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Polymer Chemistr ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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Journal of Mater ...
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Chalmers University of Technology