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Synthesis and characterization of zinc sulfide hollow microspheres

Published online by Cambridge University Press:  29 February 2012

Wang Jun
Affiliation:
Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, People’s Republic of China
Song Bo
Affiliation:
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
Wang Wen-jun
Affiliation:
Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People’s Republic of China
Wu Rong
Affiliation:
Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, People’s Republic of China
Sun Yan-fei
Affiliation:
Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, People’s Republic of China
Zheng Yu-feng
Affiliation:
Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, People’s Republic of China
Jian Ji-kang*
Affiliation:
Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, People’s Republic of China
*
a)Author to whom correspondence should be addressed. Department of Physics, Xinjiang University, Urumqi 830046, Xinjiang, P.R. China. Electronic mail: jikangjian@gmail.com

Abstract

The successful synthesis of ZnS hollow microspheres by a solvothermal route is reported. The synthesis was achieved by a proper selection of a sulfur source, i.e., Na2S2O3⋅5H2O or (NH2)2CS, to react with Zn(CH3COO)2⋅2H2O in mixed solvents of ethylene glycol and deionized water. The ZnS products were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and photoluminescence spectroscopy. XRD identified the ZnS products to have either zinc blende or wurtzite structure. SEM images revealed hollow ZnS microspheres with 1 to 2 μm diameters and 100 to 200 nm shell thicknesses. TEM images confirmed that the hollow ZnS microspheres were assembled by ZnS crystalline nanocrystallites. The room-temperature photoluminescence spectrum of the zinc blende hollow microspheres showed a strong green emission at 514 nm and weak emission at 379 nm.

Type
Technical Articles
Copyright
Copyright © Cambridge University Press 2009

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