Synthesis and thermopower measurement of LixNayCoO2

被引：12

作者：

Chen Xiao-Yang ^{[1
]}

Xu Xiang-Fan ^{[1
]}

Hu Rong-Xing ^{[1
]}

Ren Zhi ^{[1
]}

Xu Zhu-An ^{[1
]}

Cao Guang-Han ^{[1
]}

机构：

[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China

来源：

ACTA PHYSICA SINICA | 2007年 / 56卷 / 03期

关键词：

LixNayCoO2; thermopower; thermoelectric materials;

D O I：

10.7498/aps.56.1627

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Polycrystalline samples of Li-x Na-y CoO2 with an intergrowth structure have been successfully synthesized by solid-state reaction. The measured thermopower of Li-x Na-y CoO2 at room temperature is about 60 mu V/K higher than that of Na-x CoO2. Based upon the O2p characteristic for the mobile carriers, the origin of the increment in thermopower is interpreted in terms of the occupancy entropy of the O2p holes.

引用

页码：1627 / 1631

页数：5

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