Photoluminescence and field-emission characteristics of ZnO nanowires synthesized by two-step method

被引：16

作者：

Zhang, Qiuxiang

Zhang, Yongsheng

Yu, Ke

Zhu, Ziqiang

机构：

[1] E China Normal Univ, Dept Elect Engn, Shanghai 200062, Peoples R China

[2] Luoyang Technol Coll, Dept Comp, Luoyang 471003, Peoples R China

来源：

VACUUM | 2007年 / 82卷 / 01期

基金：

高等学校博士学科点专项科研基金; 中国国家自然科学基金;

关键词：

ZnO nanowires; photoluminescence; field emission;

D O I：

10.1016/j.vacuum.2006.12.016

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

ZnO nanowires with excellent photo luminescence (PL) and field-emission properties were synthesized by a two-step method, and the ZnO nanowires grew along (002) direction. PL measurements showed that the ZnO nanowires have stronger ultraviolet emission properties at 376 nm and there is 3 nm blue shift after the nanowires were immersed in thiourea (TU) solution compared with those of without immersion. The immersed-ZnO nanowires show a turn-on field of 2.3 V/mu m at a current density of 0.1 mu A/cm and emission current density up to 1 mA/cm(2) at an applied field of 6.8 V/mu m, which demonstrate that the immersed-ZnO nanowires posses efficient field-emission properties in contrast with those not immersed. The ZnO nanowires may be ideal candidates for making luminescent devices and field-emission displays. (C) 2007 Elsevier Ltd. All rights reserved.

引用

页码：30 / 34

页数：5

共 25 条

[1] Electron field emission from silicon nanowires [J].