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Journal of Nanomaterials
Volume 2007 (2007), Article ID 38589, 7 pages
http://dx.doi.org/10.1155/2007/38589
Research Article

Multifunctional Composites Obtained by Incorporating Nanocrystals into Decorated PVK Polymers

1State Key Lab for Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, China
2College of Chemistry, Northeast Normal University, Changchun 130024, China

Received 28 March 2007; Accepted 4 October 2007

Academic Editor: Wieslaw Strek

Copyright © 2007 Haizhu Sun et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Poly(vinylcarbazole) (PVK) was decorated with surfactant group to achieve amphiphilic polymer with luminescent property. The composition and properties of the polymers were systematically investigated using FTIR, EA, TGA, UV-Vis, and PL characterizations. Different CdTe nanocrystals (NCs) prepared in aqueous medium were directly transferred to organic phase using the PVK-based polymers. The quantum yield of NCs in the composites had been improved by 50% compared with their parent aqueous solution due to the short distance from carbazole moieties to NCs, which facilitated the Förster resonant energy transfer (FRET) between them. Moreover, efficient electron transfer at the interface of NCs and polymers had been confirmed which also indicated the application in photovoltaic cell for such composites.