FAR-INFRARED AND RAMAN STUDIES OF ORTHORHOMBIC MOO3 SINGLE-CRYSTAL

被引:107
作者
NAZRI, GA [1 ]
JULIEN, C [1 ]
机构
[1] UNIV PARIS 06, PHYS SOLIDES LAB, F-75252 PARIS 05, FRANCE
关键词
D O I
10.1016/0167-2738(92)90403-C
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
Molybdenum oxide (MoO3) has a unique layered structure which makes it attractive as a cathode material for rechargeable batteries, LixMoO3 is an anisotropic material with high electronic conductivity in the layers and high mobility of the alkaline atom between the layers. Single crystals of the MoO3 were grown in a two-zone furnace by conventional flux techniques. X-ray diffraction of a single crystal confirms formation of an orthorhombic structure with a comer-shared MoO6 octahedron basic entity. The lattice dynamics of the MoO3 Crystal were studied by infrared and Raman polarized spectroscopy in the entire range of 10-1500 cm-1. Characteristic vibrations are discussed with reference to the orthorhombic structure. A correlation has been established between the Mo-O bonds and the MoO6 octahedron which is the basic entity of the layered structure.
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页码:376 / 382
页数:7
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