Sol-gel synthesis and photoluminescence characterization of La2Ti2O7:EU3+ nanocrystals

稀有金属（英文版）, 2011, 30(6): 602-606. doi: 10.1007/S12598-011-0436-9

^1, , ^2, , ^3, , ^4, , ^5, , ^6, , ^7,

1.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

2.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

3.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

4.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

5.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

6.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

7.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

基金项目: the Open-End Fund for the Valuable and Precision Instruments of Central South University the National Natural Science Foundation of China(50972166) the National Science Foundation for Post-Doctoral Scientists of China and Central South University

Sol-gel synthesis and photoluminescence characterization of La2Ti2O7:EU3+ nanocrystals

CHENG Hua ^1, , LU Zhouguang ^2, , LIU Ying ^3, , YANG Haihua ^4, , GU Yingying ^5, , LI Wei ^6, , TANG Yougen ^7,

1.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

2.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

3.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

4.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

5.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

6.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

7.College of Chemistry & Chemical Engineering, Central South University, Changsha 410083, China

Keywords： lanthanum titanate

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.

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