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

MRS Online Proceedings Library volume 1322, Article number: 864 (2011) Cite this article

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 %).

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Affiliations

  1. ENEA, Unità Tecnica Tecnologia dei Materiali Brindisi (UTTMATB), SS. 7 “Appia” km 706, Brindisi, 72100, Italy

    Anna M Laera, Vincenzo Resta, Emanuela Piscopiello, Monica Schioppa & Leander Tapfer

Authors
  1. Anna M Laera
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  2. Vincenzo Resta
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  3. Emanuela Piscopiello
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  4. Monica Schioppa
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  5. Leander Tapfer
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Correspondence to Anna M Laera.

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Laera, A.M., Resta, V., Piscopiello, E. et al. Synthesis and characterization of hybrid CdS/MEH-PPV nanocomposites for photovoltaic applications. MRS Online Proceedings Library 1322, 864 (2011). https://doi.org/10.1557/opl.2011.1231

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