Growth and photoluminescence of SnO2 nanostructures synthesized by Au-Ag alloying catalyst assisted carbothermal evaporation

被引：52

作者：

Wang, B ^{[1
]}

Yang, YH ^{[1
]}

Wang, CX ^{[1
]}

Yang, GW ^{[1
]}

机构：

[1] Zhongshan Univ, Sch Phys Sci & Engn, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Peoples R China

来源：

CHEMICAL PHYSICS LETTERS | 2005年 / 407卷 / 4-6期

关键词：

D O I：

10.1016/j.cplett.2005.03.119

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：

One-dimensional (ID) nanowires, two-dimensional (2D) nanodendrites, and three-dimensional (3D) nanochains of SnO2 have been grown on single silicon substrates by Au-Ag alloying catalyst assisted carbothermal evaporation of SnO, powders. One-dimensional twinning crystalline nanowires, 2D nanodendrites with spidery structure, and 3D nanochains with zigzag structure were reported. Three new peaks at 370, 470, and 555 nm in the measured photoluminescence spectra were observed, implying that more luminescence centers exist in SnO2 nanostructures due to nanocrystals and defects. The growth of the SnO, nanostructure was discussed on the basis of the vapor-liquid-solid (VLS) mechanism. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：347 / 353

页数：7

共 35 条

[1] Grain size effects on H-2 gas sensitivity of thick film resistor using SnO2 nanoparticles [J].