Dispersion of ZnO Nanocrytals in Co-solvent and Its Application in Photovoltaic Material

Chemical Research in Chinese Universities ›› 2011, Vol. 27 ›› Issue (6): 906-909.

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Dispersion of ZnO Nanocrytals in Co-solvent and Its Application in Photovoltaic Material

CHEN Shao-jie, ZHANG Qiu-yu*, ZHANG Jun-ping, GU Jun-wei, ZHOU Jian and SHI You-qiang

Key Laboratory of Space Materials Science and Technology, Ministry of Education, School of Science, Northwestern Polytechnical University, Xi’an 710129, P. R. China

Received:2011-03-02 Revised:2011-06-21 Online:2011-11-25 Published:2011-11-07
Contact: ZHANG Qiu-yu E-mail:qyzhang1803@gmail.com
Supported by:
Supported by the National Program on Key Basic Research Project of China(No.2010CB635111) and the Doctorate Foundation of Northwestern Polytechnical University, China(No.CX201118).

Abstract

Abstract: To overcome the aggregation of nanocrystals in a blend of inorganic material with conjugated polymers to prepare photovoltaic material, we used a co-solvent blend of CHCl3 with MeOH at a certain volume fraction to disperse inorganic nanocrystals. The results show that when the volume fraction of MeOH is 50%, ZnO nanocrystals with an average diameter of 30 nm disperse well in the co-solvent solution. Its application in photovoltaic material was investigated in this work, and the photoluminescence(PL) spectra show that when ZnO was 50%(volume fraction) in solution and 25%(volume fraction) in film, the fluorescence quenching reached the maximum values 83.34% and 64.4%, respectively, indicating that electron could transfer from conjugated polymer to electron-acceptor ZnO effectively.

Key words: ZnO nanocrystal, Dispersion, Co-solvent, Photovoltaic material

CHEN Shao-jie, ZHANG Qiu-yu*, ZHANG Jun-ping, GU Jun-wei, ZHOU Jian and SHI You-qiang. Dispersion of ZnO Nanocrytals in Co-solvent and Its Application in Photovoltaic Material[J]. Chemical Research in Chinese Universities, 2011, 27(6): 906-909.

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Dispersion of ZnO Nanocrytals in Co-solvent and Its Application in Photovoltaic Material

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