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Designed for Charge Transfer: Complexes of CdSe Nanocrystals and Oligothiophenes

Published online by Cambridge University Press:  01 February 2011

Delia J. Milliron ,
Claire Pitois ,
Carine Edder ,
Jean M.J. Fréchet  and
A. Paul Alivisatos
Delia J. Milliron
Affiliation:
Department of Chemistry, University of California, Berkeley, CA 94720 and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
Claire Pitois
Affiliation:
Department of Chemistry, University of California, Berkeley, CA 94720 and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
Carine Edder
Affiliation:
Department of Chemistry, University of California, Berkeley, CA 94720 and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
Jean M.J. Fréchet
Affiliation:
Department of Chemistry, University of California, Berkeley, CA 94720 and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
A. Paul Alivisatos
Affiliation:
Department of Chemistry, University of California, Berkeley, CA 94720 and Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720
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Extract

Hybrid organic-inorganic solar cells promise to utilize the advantages of each class of materials and their complementary nature to produce power efficiently with inexpensive processing. Combining the efficient charge transport typical of inorganic semiconductors with the solution processibility of semiconducting polymers, nanocrystal-polymer photovoltaics hold tremendous potential[1[. Electronic energy levels of inorganic and organic semiconductors tend to be significantly staggered, creating a large energetic driving force for charge transfer. However, the hybrid approach requires control over the interface between dissimilar materials in order to mix them on the nanoscale. This mixing creates the very high area interface responsible for charge creation. Molecular level control of the interface, absent in current designs, could optimize charge separation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 725: Symposium P – Organic and Polymeric Materials and Devices-Optical, Electrical, and Optoelectronic Properties , 2002 , P9.7
Copyright
Copyright © Materials Research Society 2002

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References

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