Synthesis and efficient field emission of ZnO nanoinjectors

被引：7
|
作者：
Yang, Xiaxi [1 ]
Lei, Wei [1 ]
Zhang, Xiaobing [1 ]
Qu, Ke [1 ]
Zhang, Jin [1 ]
机构：
[1] Southeast Univ, Jiangsu Informat Display Engn Res Ctr, Sch Elect Sci & Engn, Nanjing 210096, Peoples R China
来源：
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2009年 / 41卷 / 09期
基金：
美国国家科学基金会;
关键词：
ZnO; Nanoinjector; Synthesis; Field emission; NANOWIRE ARRAYS;
D O I：
10.1016/j.physe.2009.05.020
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
ZnO nanoinjectors were synthesized on Au-coated Si substrate by direct thermal evaporation of zinc powder at a low temperature of 600 degrees C and atmospheric pressure Field-emission scanning electron microscopy and X-ray diffraction were applied to study the structural characteristics of the sample The result indicated that the nanoinjector sample consisted of single-crystalline wurtzite structures which were preferentially oriented in the < 001 > direction The field emission of the sample started at a turn-on field of 1.5 V/mu m at a current density of 1 mu A/cm(2), while the emission current density reached about 1 mA/cm(2) at an applied field of 5.0 V/mu m. (C) 2009 Elsevier B.V. All rights reserved
引用
收藏
页码：1661 / 1664
页数：4
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