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11 August 2011 Controlled synthesis of cadmium-free CuInS2/ZnS quantum dots
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This paper reports a hot colloidal synthesis method toward the synthesis of CuInS2/ZnS hybrid nanoparticles. First, CuInS2 quantum dots (QDs) were synthesized in the noncoordinating solvent octadecene using copper nitrate, indium acetate, myristic acid, oleylamine and dodecanethiol. CuInS2 QDs with diameter of 2~10 nm were obtained by tuning the reaction temperature and time. Secondly, CuInS2/ZnS core/shell QDs with different thickness of ZnS shell were synthesized by seed-mediated growth method, which can prevent the CuInS2 QDs oxidized and improve their photo luminance. Low-toxic cadmium-free CuInS2/ZnS QDs with high PL efficiency are expected to be used for bio-label.
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Xiao-bo Wang, Juan Chen, Jing Liu, Jian-wei Liu, Hong Ding, Ken-Tye Yong, Ling Ye, and Shu-li He "Controlled synthesis of cadmium-free CuInS2/ZnS quantum dots", Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951O (11 August 2011);

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