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Charge Transfer and Energy Transfer between CdSe Semiconductor Nano Crystals and Polyaniline Molecule

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Abstract:

CdSe semiconductor nano crystals (NCs) and Polyaniline (PAni) are mixed uniformly to prepare CdSe NCs/PAni complex. PAni can quench the fluorescent signal of CdSe NCs. The fluorescent intensity of CdSe NCs/PAni complex is related to the size of CdSe NCs and concentration of PAni. Ultraviolet visual (UV-Vis) absorption spectra and fluorescence spectra are employed to analysis the quenching phenomenon. The mechanism of fluorescence quench is dependent on two factors: on one hand, the FÖrster resonance energy transfer conducts from CdSe to PAni; on the other hand, PAni can intercept the electron charge of CdSe and lead to the interruption of radiative recombination.

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Periodical:

Advanced Materials Research (Volume 981)

Pages:

801-805

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.981.801

Citation:

Cite this paper

Online since:

July 2014

Authors:

Wu Lei Zhou, Tuo Cai, Jian Xiao, Xue Ting Han, Jian Bo Liu, Liang Xu, Jian Guang Chi, Shao Hong Gao, Xi Ping Cai, Li Min An*

Keywords:

CdSe, Charge Transfer, Energy Transfer, Fluorescence Life, Polyaniline (PANI), Semiconductor Nano Crystals (NCs)

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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* - Corresponding Author

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