Sol-gel synthesis and photoluminescence characterization of La2Ti2O7:Eu3+ nanocrystals

• DOI: 10.1007/s12598-011-0436-9
• Publication Date: 2011-12-24T04:15:46Z
• Authors: Hua Cheng; Zhouguang Lu; Ying Liu; Haihua Yang; Yingying Gu; Wei Li; Yougen Tang
• Keywords: Monoclinic crystal system

Eu3+ doped La2Ti2O7 nanocrystals with pure monoclinic phase and size of about 100 nm were prepared by a citric acid (CA) assisted sol-gel method. Techniques of thermo-gravimetric (TG) and differential scanning calorimetry (DSC), X-ray diffraction (XRD), as well as transmission electron microscopy (TEM) were employed to characterize the as-synthesized nanoparticles. Furthermore, photoluminescence (PL) performances of the Eu3+ doped La2Ti2O7 nanocrystals were evaluated with focus on the effects of calcination temperature and Eu3+ doping concentration on the photoluminescence properties.