Photoluminescence and dielectric properties of LnTiTaO6 (Ln = Ce, Pr, Sm) polycrystals

被引：22
|
作者：
Jacob, Lovely
Kumar, H. Padma
Gopchandran, K. G.
Thomas, Jijimon K.
Solomon, Sam [1 ]
机构：
[1] St Johns Coll, Dept Phys, Anchal 691306, Kerala, India
[2] Univ Kerala, Dept Optoelect, Trivandrum 695581, Kerala, India
[3] Mar Ivanios Coll, Dept Phys, Thiruvananthapuram 695015, Kerala, India
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2007年 / 18卷 / 08期
关键词：
D O I：
10.1007/s10854-006-9112-5
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Polycrystalline LnTiTaO(6) (Ln = Ce, Pr, Sm) compounds were prepared in the solid state ceramic route. The powders were calcined between 1250 degrees C and 1300 degrees C and sintered between 1480 degrees C and 1520 degrees C. The materials were characterized by XRD and SEM. The dielectric properties were measured in the frequency range 1 kHz-5 MHz. The absorption spectra and photoluminescence spectra of the samples were analysed. The materials are useful as gain media in micro lasers because of the optical absorption and photoluminescence.
引用
收藏
页码：831 / 835
页数：5
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