The Peculiarities of the Electrical Conductivity of LiNbO3 Crystals, Reduced in Hydrogen

被引：9

作者：

Yatsenko, A. V. ^{[2
]}

Pritulenko, A. S. ^{[2
]}

Yevdokimov, S. V. ^{[2
]}

Sugak, D. Yu. ^{[1
,3
]}

Solskii, I. M. ^{[3
]}

机构：

[1] Lviv Polytech Natl Univ, 12 Bandera Str, Lvov, Ukraine

[2] Taurida Natl Univ, UA-95007 Simferopol, Ukraine

[3] Sci Res Co Carat, Lvov, Ukraine

来源：

OXIDE MATERIALS FOR ELECTRONIC ENGINEERING - FABRICATION, PROPERTIES AND APPLICATIONS | 2013年 / 200卷

关键词：

LiNbO3; reducing; electrical conductivity; activation energy; impedance spectroscopy; PHASE-TRANSITION; NIOBATE;

D O I：

10.4028/www.scientific.net/SSP.200.193

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：

The low-frequency impedance spectroscopy method has been used to investigate the electrical conductivity peculiarities of lithium niobate (LN) crystals reduced in hydrogen. It has been found that the activation energy value of the dark electrical conductivity of such crystals in a temperature range of 288 ... 370 kappa is equal to 0.68 +/- 0.02 eV. It has been demonstrated that the multiple heating of "black" LN crystals up to a temperature of about 420 K results in surface layers with modified electrical properties to occur in the crystal's polar faces. The electrical conductivity mechanism of LiNbO3 crystals reduced in the hydrogen-containing atmosphere, and the causes of the instability of these properties are discussed.

引用

页码：193 / +

页数：2

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