Eur. Phys. J. Appl. Phys. (2013) 64: 10404
https://doi.org/10.1051/epjap/2013130008

Synthesis and optical properties of ZnAl₂O₄:Cr³⁺, Tb³⁺ powders^*

Faculty of Physics, VNU University of Science, 334 Nguyen Trai, Thanh Xuan, Hanoi, Vietnam

^a e-mail: loan.trinhthi@gmail.com

Received: 3 January 2013
Revised: 6 May 2013
Accepted: 22 July 2013
Published online: 4 October 2013

Abstract

ZnAl₂O₄:Cr³⁺, Tb³⁺ powders with different dopant contents have been synthesized by sol-gel method using the following precursors: zinc nitrate (Zn(NO₃)₂), aluminum nitrate (Al(NO₃)₃), terbium nitrate (Tb(NO₃)₃), chrome nitrate (Cr(NO₃)₃), and citric acid. The effect of the Cr³⁺, Tb³⁺ concentration and heat-treating temperature on structural and optical properties of the synthesized samples has been studied.