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Bulk Heterojunction Photovoltaic Cells from Polymer Mixtures with Soluble Oxadiazole and Quinoline Polymers as Electron Acceptors

Published online by Cambridge University Press:  01 February 2011

Solon Economopoulos ,
Christos L. Chochos ,
Giannis K. Govaris ,
Panagiotis Yiannoulis ,
Joannis K. Kallitsis  and
Vasilis G. Gregoriou
Solon Economopoulos
Affiliation:
Foundation for Research and Technology Hellas Institute of Chemical Engineering and High Temperature Chemical Processes, (FORTH-ICEHT), P.O. Box 1414, Patras 26504, Greece. Department of Chemistry, University of Patras, Patras 26500, Greece.
Christos L. Chochos
Affiliation:
Foundation for Research and Technology Hellas Institute of Chemical Engineering and High Temperature Chemical Processes, (FORTH-ICEHT), P.O. Box 1414, Patras 26504, Greece. Department of Chemistry, University of Patras, Patras 26500, Greece.
Giannis K. Govaris
Affiliation:
Foundation for Research and Technology Hellas Institute of Chemical Engineering and High Temperature Chemical Processes, (FORTH-ICEHT), P.O. Box 1414, Patras 26504, Greece. Department of Physics, University of Patras, Patras 26500, Greece.
Panagiotis Yiannoulis
Affiliation:
Department of Physics, University of Patras, Patras 26500, Greece.
Joannis K. Kallitsis
Affiliation:
Foundation for Research and Technology Hellas Institute of Chemical Engineering and High Temperature Chemical Processes, (FORTH-ICEHT), P.O. Box 1414, Patras 26504, Greece. Department of Chemistry, University of Patras, Patras 26500, Greece.
Vasilis G. Gregoriou*
Affiliation:
Foundation for Research and Technology Hellas Institute of Chemical Engineering and High Temperature Chemical Processes, (FORTH-ICEHT), P.O. Box 1414, Patras 26504, Greece.
*
* Corresponding author. Phone: (+30)2610–965205. Fax: (+30)2610–965223. E-mail: gregoriou@iceht.forth.gr
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Abstract

The interplay between phase separation in polymer blends consisting of the electron donating poly(3-hexylthiophene-2, 5-diyl) (P3HT) or poly[2-methoxy-5-(2'-ethylhexyloxy)-, 4-phenylenevinylene] (MEH-PPV), with either polyquinoline or a fluorene-oxadiazole copolymer as the electron accepting polymers is presented herein. The bulk heterojunction photovoltaic performance has been examined for these blends along with a new copoly(aryl ether) containing substituted anthracene and fluorene segments coupled with aromatic 1, 3, 4-oxadiazole moieties. Photoluminescence quenching in the MEH-PPV blends as well as a 100-fold photocurrent enhancement of the bulk heterojunction device P3HT/SDPQ photovoltaic device were observed compared to the single layer P3HT device. Finally, the structure and morphology of these films was investigated using atomic force microscopy and scanning electron microscopy in an attempt to correlate the role of morphology to photovoltaic performance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 836: Symposium L – Materials for Photovoltaics , 2004 , L5.16
Copyright
Copyright © Materials Research Society 2005

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References

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