Photoluminescence properties of thermally stable highly crystalline CdS nanoparticles

Materials Research

Sanjay R. Dhage¹  Henry A. Colorado¹  Hong Thomas Hahn¹ 

[1],University of California Mechanical and Aerospace Engineering Department Los Angeles CA ,USA

关键词: CdS;    chemical synthesis;    x-ray diffraction;    TEM;    optical properties;   

DOI  :  10.1590/S1516-14392013005000020

来源: SciELO

【 摘 要 】

Thermally stable and highly crystalline CdS nanoparticles were obtained via chemical bath method. The optical properties of CdS nanocrystals were characterized by ultraviolet-vis and photoluminescence spectroscopy. Improvement in the photoluminescence properties of the synthesized CdS nanocrystals was observed. This improvement is believed to be due to highly crystalline CdS nanoparticles which may reduce the local surface-trap states. The CdS nanoparticles were characterized by x-ray powder diffraction (XRD), thermo gravimetric analysis (TGA/DTA) and transmission electron microscopy (TEM).

【 授权许可】

CC BY   
 All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License