Open AccessMultifunctional Composites Obtained by Incorporating Nanocrystals into Decorated PVK Polymers
Author(s) -
Haizhu Sun,
Junhu Zhang,
Ye Tian,
Ning Yang,
Hao Zhang,
Jie Ju,
Delong Li,
Shidong Xiang,
Bai Yang
Publication year - 2007
Publication title -
journal of nanomaterials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.463
H-Index - 66
eISSN - 1687-4129
pISSN - 1687-4110
DOI - 10.1155/2007/38589
Subject(s) - materials science , polymer , carbazole , nanocrystal , aqueous solution , chemical engineering , luminescence , phase (matter) , fourier transform infrared spectroscopy , composite material , quantum yield , amphiphile , copolymer , nanotechnology , photochemistry , fluorescence , organic chemistry , optoelectronics , chemistry , engineering , physics , quantum mechanics
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
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