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.
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收藏
页码：831 / 835
页数：5
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