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Synthesis and characterization of hybrid CdS/MEH-PPV nanocomposites for photovoltaic applications

Published online by Cambridge University Press:  03 August 2011

Anna M. Laera ,
Vincenzo Resta ,
Emanuela Piscopiello ,
Monica Schioppa  and
Leander Tapfer
Anna M. Laera
Affiliation:
ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), S.S. 7 “Appia” km 706, 72100 Brindisi, Italy
Vincenzo Resta
Affiliation:
ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), S.S. 7 “Appia” km 706, 72100 Brindisi, Italy
Emanuela Piscopiello
Affiliation:
ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), S.S. 7 “Appia” km 706, 72100 Brindisi, Italy
Monica Schioppa
Affiliation:
ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), S.S. 7 “Appia” km 706, 72100 Brindisi, Italy
Leander Tapfer
Affiliation:
ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), S.S. 7 “Appia” km 706, 72100 Brindisi, Italy
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Abstract

Inorganic-organic nanocomposites, with II-VI or III-V semiconductor nanocrystals (NCs) embedded in semiconducting polymer matrix, are very promising materials for photovoltaic applications.

Here, we present an effective and easy synthesis procedure to obtain a hybrid nanocomposite with CdS NCs dispersed in poly[2-methoxy-5-(2-(2’-ethyl-hexyloxy)-1,4-phenylene vinylene] (MEH-PPV) conjugated polymer. CdS NCs are synthesized directly within the matrix through the decomposition of a suitable unimolecular precursor dispersed homogeneously in the polymer.

We show that CdS NCs are formed at low annealing temperature avoiding structural damages and without affecting the functional properties of the MEH-PPV polymer. The NCs diameter ranges between 1.5nm and 4nm depending on the annealing temperature. In addition, no coalescence phenomena of CdS NCs were noticed in TEM observations even at very high particle density (40 wt %).

Keywords

compositechemical synthesisnanostructure
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1322: Symposium B – Third-Generation and Emerging Solar-Cell Technologies , 2011 , mrss11-1322-b08-64
Copyright
Copyright © Materials Research Society 2011

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References

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