Effect of CdS nanoparticles on photoluminescence spectra of Tb3+ in sol�?�gel-derived silica glasses

Bulletin of materials science

L Bokatial¹  S Rai¹ 

[1] Department of Physics, Dibrugarh University, Dibrugarh 786 004, India$$Department of Physics, Dibrugarh University, Dibrugarh 786 004, IndiaDepartment of Physics, Dibrugarh University, Dibrugarh 786 004, India$$

关键词: Glasses;    solâ€�?�gel technique;    nanoparticles;    semiconductors;    photoluminescence.;   

DOI  :  

学科分类：材料工程

来源: Indian Academy of Sciences

【 摘 要 】

CdS nanoparticles doped with Tb³⁺ were synthesized by solâ€�?�gel technique. The influence of CdS on the Tb³⁺ glass was studied by UV-Visible and luminescence spectroscopy. The luminescence intensity of the glasses increased significantly in the presence of CdS nanoparticles. Terbium ions excited into the ${}^{5}D_{3}$ level have a rich emission spectrum in the 400â€�??700 nm range decaying to different ${}^{7}F_{J}$ levels. The intensity of violet and blue luminescence from ${}^{5}D_{3}$ level is highly dependent on Tb³⁺ concentration, on presence of CdS co-dopant and annealing conditions.

【 授权许可】

Unknown