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Plasticized conjugated polymers: a possible route to higher voltage solar cells

Published online by Cambridge University Press:  01 February 2011

Paul Wentzel  and
Aurelien Du Pasquier
Paul Wentzel
Affiliation:
Energy Storage research group, Department of Ceramics and Materials Engineering, Rutgers, The State University of New Jersey 10, Knightsbridge Road, Piscataway NJ 08854
Aurelien Du Pasquier
Affiliation:
Energy Storage research group, Department of Ceramics and Materials Engineering, Rutgers, The State University of New Jersey 10, Knightsbridge Road, Piscataway NJ 08854
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Abstract

The introduction of propylene carbonate (PC) into the poly (3-alkyl)thiophenes (P3AT) poly(octyl)thiophene (P3OT) and poly(hexyl)thiophene) (P3HT) is studied. In both cases, we observe a diminution of their melting temperature, which demonstrates a plasticizing effect. We also observe an increase of photovoltage and photocurrent in sandwich devices M//P3AT+PC//ITO-PET where M=Al, Mg and ITO-PET is Indium thin oxide coated on polyester. We attribute this effect to the introduction of oxygen from the PC. When mixed with an electron acceptor PCBM, the photocurrents only slightly increase and the photovoltages are similar. In this case, the presence of oxygen is detrimental to the system.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 836: Symposium L – Materials for Photovoltaics , 2004 , L3.7
Copyright
Copyright © Materials Research Society 2005

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References

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