Nb 3d and O 1s core levels and chemical bonding in niobates

被引：215

作者：

Atuchin, VV ^{[1
]}

Kalabin, IE

Kesler, VG

Pervukhina, NV

机构：

[1] RAS, SB, Inst Semicond Phys, Lab Opt Mat & Struct, Novosibirsk 630090, Russia

[2] RAS, SB, Inst Semicond Phys, Ctr Tech, Novosibirsk 630090, Russia

[3] RAS, SB, Lab Crystal Chem, Inst Inorgan Chem, Novosibirsk 630090, Russia

来源：

JOURNAL OF ELECTRON SPECTROSCOPY AND RELATED PHENOMENA | 2005年 / 142卷 / 02期

关键词：

XPS; crystal structure; niobate; bonding;

D O I：

10.1016/j.elspec.2004.10.003

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

A set of available experimental data on binding energies of Nb 3d(5/2) and O 1s core levels in niobates has been observed with using energy difference (O 1s-Nb 3d(5/2)) as a robust parameter for compound characterization. An empirical relationship between (O 1s-Nb 3d(5/2)) values measured with XPS for Nb5+-niobates and mean chemical bond length L(Nb-O) has been discussed. A range of (O 1s-Nb 3d(5/2)) values possible in Nb5+-niobates has been defined. An energy gap similar to1.4-1.8 eV is found between (O 1s-Nb 3d(5/2)) values reasonable for Nb5+ and Nb4+ states in niobates. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：129 / 134

页数：6

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