CaCu3Ti4O12:: Low-temperature synthesis by pyrolysis of an organic solution

被引：86

作者：

Liu, Jianjun ^{[1
]}

Sui, Yucheng

Duan, Chun-Gang

Mei, Wai-Ning

Smith, Robert W.

Hardy, John R.

机构：

[1] Univ Nebraska, Dept Phys, Omaha, NE 68182 USA

[2] Univ Nebraska, Dept Chem, Omaha, NE 68182 USA

[3] Univ Nebraska, Dept Phys & Astron, Lincoln, NE 68588 USA

来源：

CHEMISTRY OF MATERIALS | 2006年 / 18卷 / 16期

关键词：

D O I：

10.1021/cm060836m

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：

The giant-dielectric-constant material CaCu3Ti4O12 (CCTO) has been synthesized by pyrolyzing an organic solution containing stoichiometric amounts of the metal cations, which is done at lower temperature and shorter reaction time than the conventional solid-state reaction. A stable solution was prepared by dissolving calcium nitrate, copper(II) nitrate, and titanium(IV) isopropoxide in 2-methoxyethanol. This solution was pyrolyzed and heat-treated to achieve single-phase CCTO. The phases, microstructures, and dielectric properties of intermediate and final samples were characterized by X-ray diffraction, scanning electron microscopy, and dielectric spectroscopy.

引用

页码：3878 / 3882

页数：5

共 18 条

[11] Preparation of CaCu3Ti4O12 thin films by chemical solution deposition [J].