Fabrication and optical properties of spear-like ZnO nanostructures by chemical vapor deposition

被引：15

作者：

Wang, Dong ^{[1
]}

Zhang, Jingwen ^{[1
]}

Hu, Ya'nan ^{[1
]}

Li, Gaoming ^{[1
]}

Bi, Zhen ^{[1
]}

Zhang, Xin'an ^{[1
]}

Bian, Xuming ^{[1
]}

Hou, Xun ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Key Lab Photon Technol Informat, Xian 710049, Shaanxi Prov, Peoples R China

来源：

MATERIALS LETTERS | 2009年 / 63卷 / 24-25期

关键词：

CVD; Spear-like ZnO nanowires; Luminescence; Nanomaterials; PHOTOLUMINESCENCE; NANORODS;

D O I：

10.1016/j.matlet.2009.07.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Novel spear-like Zno nanowires with a length of 2 mu m and a width of 0.26 mu m were synthesized on p-Si (100) substrates by chemical vapor deposition (CVD) method without catalysts. The crystal structures and morphographies of the products were characterized by X-ray powder diffraction (XRD) and high resolution field emission scanning electron microscope (FE-SEM). Energy dispersive X-ray spectrum (EDS) demonstrated that the spear-like microstuctures consist of element Zn and O. It indicated that the shapes of the products strongly depend on the growth conditions. The optical properties of spear-like ZnO nanostructures were investigated by temperature-depended photoluminescence (PL) measurements and all of the observed emission lines were well fitted by the Varshni formula. (C) 2009 Elsevier B.V. Ail rights reserved.

引用

页码：2157 / 2159

页数：3

共 15 条

[11] TEMPERATURE DEPENDENCE OF ENERGY GAP IN SEMICONDUCTORS [J].