An alternative aqueous synthetic route to preparing CdTe quantum dots with tunable photoluminescence  

作　　者：Yi Lin Wang Sheng Yan Liu Li Ya Zhou 

机构地区：[1]School of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China

出　　处：《Chinese Chemical Letters》2012年第3期359-362,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No61066006);the Scientific Research Foundation of Guangxi University(NoXBZ110359)

摘　　要：An aqueous synthetic route has been developed for the preparation of mercaptosuccinic acid（MSA）-capped CdTe quantum dots （QDs） using TeO_2 as tellurium source and sodium borohydride as reductant.The size and the emission color of CdTe QDs can be tuned by varying the reflux time.The obtained QDs were characterized by photoluminescence（PL） spectroscopy,X-ray powder diffraction（XRD） and high-resolution transmission electron microscopy（HRTEM）.The results show that the CdTe QDs were of zinc-blende crystal structure in a sphere-like shape.An aqueous synthetic route has been developed for the preparation of mercaptosuccinic acid（MSA）-capped CdTe quantum dots （QDs） using TeO_2 as tellurium source and sodium borohydride as reductant.The size and the emission color of CdTe QDs can be tuned by varying the reflux time.The obtained QDs were characterized by photoluminescence（PL） spectroscopy,X-ray powder diffraction（XRD） and high-resolution transmission electron microscopy（HRTEM）.The results show that the CdTe QDs were of zinc-blende crystal structure in a sphere-like shape.

关 键 词：Cadmium telluride Quantum dots Synthesis PHOTOLUMINESCENCE 

分 类 号：TN304.25[电子电信—物理电子学] TQ463.4[化学工程—制药化工]