Growth, Crystal Structure, Theoretical Analysis and Properties of Te4+-Doped KTiOPO4

被引：1

作者：

Liu, Lintao ^{[1
]}

Yao, Qian ^{[1
]}

Zhang, Junying ^{[1
]}

Dong, Weimin ^{[1
]}

Li, Jing ^{[1
]}

Wang, Jiyang ^{[1
]}

Boughton, Robert I. ^{[2
]}

机构：

[1] Shandong Univ, State Key Lab Crystal Mat, Jinan 250100, Shandong, Peoples R China

[2] Bowling Green State Univ, Dept Phys & Astron, Bowling Green, OH 43403 USA

来源：

JOURNAL OF ELECTRONIC MATERIALS | 2018年 / 47卷 / 07期

基金：

中国国家自然科学基金;

关键词：

Optical material; crystal growth; electronic band structure; thermal conductivity; thermal expansion; RAY PHOTOELECTRON-SPECTROSCOPY; NONLINEAR-OPTICAL PROPERTIES; IDENTIFICATION; CONDUCTIVITY; TRANSITION; REDUCTION;

D O I：

10.1007/s11664-018-6267-9

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：

A single crystal of Te4+-doped KTiOPO4(Te:KTP) has been grown by the flux method. The electronic structure and density of states of KTiOPO4 (KTP) and Te:KTP were calculated from first principles. As the results reveal, there is no change in the space group or lattice structure of Te:KTP, but that some increase in lattice parameters occurred. The chemical composition of Te:KTP was analyzed using x-ray photoelectron spectroscopy (XPS). The possible existence of Ti3+ has been evaluated by measuring the electron paramagnetic resonance spectrum, and the results reveal that the ion is absent from this crystal. It was observed that Te4+ doping reduces the conductivity of the crystal from measurements of its conductivity at different temperatures and frequencies, indicating that Te:KTP has excellent electro-optical properties. The effect of Te4+ doping on the second harmonic generation in KTP was also studied. The thermal expansion, thermal diffusivity, thermal conductivity and specific heat capacity of KTP and Te:KTP were determined.

引用

页码：3902 / 3911

页数：10

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