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A Novel Solution Processable Electron Acceptor, C60(CN)2, for Bulk Heterojunction Photovoltaic Applications

Published online by Cambridge University Press:  21 March 2011

Vaishali R. Koppolu ,
Mool C. Gupta ,
Will Bagienski ,
Yang Shen ,
Chunying Shu ,
Harry W. Gibson  and
Harry C. Dorn
Vaishali R. Koppolu
Affiliation:
Charles L. Brown Department of Electrical and Computer Engineering, 351 McCormick Road, University of Virginia, Charlottesville, VA 22904, U.S.A
Mool C. Gupta
Affiliation:
Charles L. Brown Department of Electrical and Computer Engineering, 351 McCormick Road, University of Virginia, Charlottesville, VA 22904, U.S.A
Will Bagienski
Affiliation:
Charles L. Brown Department of Electrical and Computer Engineering, 351 McCormick Road, University of Virginia, Charlottesville, VA 22904, U.S.A
Yang Shen
Affiliation:
Charles L. Brown Department of Electrical and Computer Engineering, 351 McCormick Road, University of Virginia, Charlottesville, VA 22904, U.S.A
Chunying Shu
Affiliation:
Department of Chemistry, 107 Davidson Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, U.S.A.
Harry W. Gibson
Affiliation:
Department of Chemistry, 107 Davidson Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, U.S.A.
Harry C. Dorn
Affiliation:
Department of Chemistry, 107 Davidson Hall, Virginia Polytechnic Institute and State University, Blacksburg, VA 24061, U.S.A.
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Abstract

Photovoltaic devices based on soluble conjugated polymers have gained great interest in recent years because of the potential low cost of production and ease of fabrication. PCBM ([6,6]-phenyl-C61-butyric acid methyl ester), a fullerene derivative, has been extensively investigated as a solution processable electron acceptor for bulk-heterojunction (BHJ) photovoltaic devices blended with conjugate polymers like P3HT [poly(3-hexylthiophene)]. Here, we investigated a novel solution processable organic semiconductor, C60(CN)2, as an electron acceptor for bulk heterojunction photovoltaic applications. Optical and electrical properties of C60(CN)2 are studied and compared with PCBM. Blend devices with P3HT and C60(CN)2 have been fabricated and compared with P3HT-PCBM devices. The effect of thermal annealing on the device performance is evaluated. Open circuit voltage, short circuit current, fill factor and total efficiency data are compared with PCBM based devices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1123: Symposium P – Photovoltaic Materials and Manufacturing Issues , 2008 , 1123-P04-08
Copyright
Copyright © Materials Research Society 2009

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