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.

Date Published: 11 August 2011
PDF: 7 pages
Proc. SPIE 8195, International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications, 81951O (11 August 2011); doi: 10.1117/12.901087

Published in SPIE Proceedings Vol. 8195:
International Symposium on Photoelectronic Detection and Imaging 2011: Terahertz Wave Technologies and Applications
X.-C. Zhang; Jianquan Yao; Cunlin Zhang; Zhenzhan Wang, Editor(s)