An optical and structural investigation into CdTe nanocrystals embedded into the tellurium lithium borophosphate glass matrix  

作　　者：WAGEH S 

机构地区：[1]Physics & Engineering Mathematics Department,Faculty of Electronic Engineering,Menufiya University

出　　处：《Science China(Physics,Mechanics & Astronomy)》2010年第5期818-822,共5页中国科学：物理学、力学、天文学（英文版）

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. 10974013 and 60978060);Research Fund for the Doctoral Program of Higher Education of China (Grant Nos. 20070004024 and 20070004031);the Beijing NOVA Program (Grant No. 2007A024);the 111 Project (Grant No. B08002);the Research Grants from TWAS

摘　　要：Cadmium telluride nanocrystals that form in the TeO2-Li2O-B2O3-P2O5 glass matrix have been synthesized and studied.They are investigated by X-ray diffraction(XRD),optical transmission and infrared spectroscopy.It has been shown that the long annealing time effect on present samples leads to the growth of CdTe nanoparticles and an increase of tellurium oxide on the surface of nanocrystallites.On the other hand,the infrared spectroscopy shows that the phosphate and borate networks of the glass matrices are modified with doping by CdTe nanoparticles.Cadmium telluride nanocrystals that form in the TeO2-Li2O-B2O3-P2O5 glass matrix have been synthesized and studied.They are investigated by X-ray diffraction(XRD),optical transmission and infrared spectroscopy.It has been shown that the long annealing time effect on present samples leads to the growth of CdTe nanoparticles and an increase of tellurium oxide on the surface of nanocrystallites.On the other hand,the infrared spectroscopy shows that the phosphate and borate networks of the glass matrices are modified with doping by CdTe nanoparticles.

关 键 词：CDTE NANOCRYSTALS quantum DOTS crystal structure OPTICAL properties 

分 类 号：O434.1[机械工程—光学工程]