高等学校化学研究 ›› 2011, Vol. 27 ›› Issue (4): 540-542.
Synthesis of CdTe/SiO2 Composites and Their Fluorescence Properties
WANG Mei-ping*, LIN Jin-hui and SHAN Chuan-sheng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
Synthesis of CdTe/SiO2 Composites and Their Fluorescence Properties
WANG Mei-ping*, LIN Jin-hui and SHAN Chuan-sheng
- College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, P. R. China
摘要： Thioglycolic acid(TGA)-stabilized CdTe nanocrystals(NCs) were prepared with sodium tellurite as tellurium source, which avoids the cumbersome processes associated with H2Te or NaHTe sources. Fluorescent CdTe/SiO2 composites were synthesized by a sol-gel method without the exchange of surface ligands. The phase structure of CdTe NCs was investigated by X-ray diffractometry. For comparison, some characterizations were done for both the CdTe NCs and the composites. CdTe NCs and CdTe/SiO2 composites were characterized with TEM, digital camera and fluorescence spectrophotometer. The stability of CdTe NCs and the composites were investigated in phosphate-buffered saline(PBS) buffer and the fluorescent properties of the composites were discussed in detail.