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L―cysteine―assisted Synthesis of AgInS2 Microspheres

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Author(s): LIU Hai-Tao, ZHONG Jia-Song, LIANG Xiao-Juan, ZHANG Jing-Feng, XIANG Wei-Dong

Journal: Journal of Inorganic Materials
ISSN 1000-324X

Volume: 26;
Issue: 11;
Start page: 1221;
Date: 2011;
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Keywords: AgInS2; L-cysteine; biomolecule; semiconductor

ABSTRACT
AgInS2 microspheres were synthesized via a simple solvothermal route using biomolecule L―cysteine―assisted methods. The L―cysteine both as sulfur source and complexing agent plays an important role in the formation of AgInS2 microspheres. The morphology, structure, and phase composition of the as―prepared AgInS2 products were studied through X―ray diffraction, field emission scanning electron microscope, energy dispersive X―ray spectroscope, X―ray photoelectron spectroscope, transmission electron microscope, and high―resolution transmission electron microscope. The Results showed that the as―prepared AgInS2 microspheres were orthorhombic phase with average diameters of about 2 μm. In addition, the effect of reaction temperature on morphology of the product was investigated, and a possible growth mechanism of the AgInS2 microspheres was also determined based on electron microscope.
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