Preparation, structural and optical properties of a new class of compounds, Bi2MNbO7 (M = Al, Ga, In)

被引：38

作者：

Zou, ZG

Ye, JH

Arakawa, H

机构：

[1] Natl Inst Mat & Chem Res, Tsukuba, Ibaraki 305, Japan

[2] Natl Res Inst Met, Tsukuba, Ibaraki 305, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY | 2001年 / 79卷 / 01期

关键词：

chemical synthesis; crystal structure and symmetry; optical properties;

D O I：

10.1016/S0921-5107(00)00548-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A new class of compounds, Bi2MNbO7 (M = Al, Ga, In), were synthesized by the solid-state reaction and characterized by powder X-ray diffraction and Rietveld structure refinement. The optical absorption and structural properties of Bi2MNbO7 (M = Al, Ga, In) were investigated. These compounds crystallize in the same pyrochlore structure, but the lattice parameters decrease with decreasing M (M = Al, Ga, In) ionic radii. The band gaps of the Bi2MNbO7 (M = Al, Ga, In) compounds were estimated to be about 2.9, 2.75 and 2.7 eV, respectively. (C) 2001 Elsevier Science S.A. All rights reserved.

引用

页码：83 / 85

页数：3

共 6 条

[1] SCATTERING BY IONIZATION AND PHONON EMISSION IN SEMICONDUCTORS [J].