Synthesis and optical characterization of Co3O4 nanocrystals

被引：155

作者：

Gu, Feng ^{[1
]}

Li, Chunzhong ^{[1
]}

Hu, Yanjie ^{[1
]}

Zhang, Ling ^{[1
]}

机构：

[1] E China Univ Sci & Technol, Sch Mat Sci & Engn, Key Lab Ultrafine Mat Minist Educ, Shanghai 200237, Peoples R China

来源：

JOURNAL OF CRYSTAL GROWTH | 2007年 / 304卷 / 02期

基金：

中国国家自然科学基金;

关键词：

low-dimensional structures; X-ray diffraction; nanomaterials;

D O I：

10.1016/j.jcrysgro.2007.03.040

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Cobalt oxide (Co3O4) nanocrystals have been synthesized successfully via a facile combustion method. The Li ions incorporated into the Co3O4 lattice should serve as a self-promoter for the crystallization, resulting in the drastic increase of particle size. The Li addition can complex the structure of the energy band gap. The optical absorption spectra indicate that the direct band gap of Co3O4 varied from 3.11 and 1.62 to 3.29-3.98 eV after introducing Li ions. This approach provides economically viable route for large-scale synthesis of this kind of nanomaterials. (c) 2007 Elsevier B.V. All rights reserved.

引用

页码：369 / 373

页数：5

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