Synthesis and characterization of CdTe nanoparticles stabilized by cysteamine

被引：0
|
作者：
Qin Yuan-Bin
Yang Xi
Yu Jun-Sheng [1 ]
机构：
[1] Nanjing Univ, Sch Chem & Chem Engn, Nanjing 210093, Peoples R China
[2] Nanjing Univ, Sch Environm, State Key Lab Pollut Control & Resource Reuse, Nanjing 210093, Peoples R China
来源：
CHINESE JOURNAL OF INORGANIC CHEMISTRY | 2006年 / 22卷 / 05期
关键词：
CdTe; cysteamine; fluorescence; quantum dot;
D O I：
暂无
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
The water-soluble size controllable CdTe nanoparticles have been synthesized using cysteamine (CA) hydrochloride as stabilizer. The experimental results showed that the synthesis conditions including pH and molar ratios of the ligands (CA) to monomers (Cd2+ ions) in the precursor solution played an important role in the photoluminescence (PL) quantum yield (QY) of the as-prepared CdTe NCs. At pH = 6.1, the maximum fluorescent emission peak appeared in the orange-red window, and the maximum PL QY was about 9% at room temperature without any post-preparative treatment. By controlling the reflux time, CdTe nanoparticles with different sizes were synthesized, and the PL ranged from 520 to 600 nm. TEM, XRD, XPS and FTIR were used to characterize the size, shape, and composition of CdTe nanoparticles.
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页码：851 / 855
页数：5
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