Formation mechanism of black LiTaO3 single crystals through chemical reduction

被引：23
|
作者：
Yan, Tao [1 ]
Zheng, Feifei [1 ]
Yu, Yonggui [2 ]
Qin, Shubin [1 ]
Liu, Hong [1 ]
Wang, Jiyang [1 ]
Yu, Dehong [3 ]
机构：
[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Peoples R China
[2] Deqing Huaying Elect Co, Deqing 313200, Peoples R China
[3] Australian Nucl Sci & Technol Org, Bragg Inst, Lucas Heights, NSW 2234, Australia
来源：
JOURNAL OF APPLIED CRYSTALLOGRAPHY | 2011年 / 44卷
关键词：
black lithium tantalate; X-ray photoelectron spectroscopy; X-ray diffraction; LITHIUM-NIOBATE; DEVICE FABRICATION; OXYGEN VACANCIES; DEFECT STRUCTURE; LINBO3; CRYSTALS; DOPED LINBO3; GROWTH; STOICHIOMETRY; PERFORMANCE; TANTALATE;
D O I：
10.1107/S0021889810052520
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Lithium tantalate (LiTaO3, LT) wafers of different colors were prepared through chemical reduction of regular congruent LT wafers. Samples with different colors corresponding to different annealing temperatures were characterized by X-ray diffraction, X-ray photoelectron spectroscopy, and measurements of the Curie temperature and density. It was found that chemical reduction does not influence the basic LT structure. The Ta charge state change due to chemical reduction was found to be the main reason for the formation of black LT wafers.
引用
收藏
页码：158 / 162
页数：5
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