Journal
MATERIALS LETTERS
Volume 63, Issue 13-14, Pages 1192-1194Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.matlet.2009.02.032
Keywords
Nanoparticles; CuInS2; Chalcopyrite; Solvothermal process
Funding
- Chinese Academy of Sciences
- National 973 Project of China [2007CB936602]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars
- State Education Ministry
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Single crystalline CuInS2 particles with a chalcopyrite structure and a size of 7-10 nm were prepared by a convenient solvothermal reaction, and characterized by XRD, XPS, TEM (HR-TEM) and UV-vis absorption spectroscopy. The as-synthesized nanoparticles can be redispersed in organic solvents, which will facilitate the practical application of these nanoparticles under organic-solution conditions. The growth of the CuInS2 is regarded to involve the formation and decomposition of Cu2+-thiourea complexes, the reduction of Cu2+. and a slow supply of In3+ ions in the crystallization solution. (C) 2009 Elsevier B.V. All rights reserved.
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