Synthesis and field emission of patterned ZnO nanorods

被引：27

作者：

Huang, Yong ^{[1
]}

Yu, Ke ^{[1
]}

Zhu, Ziqiang ^{[1
]}

机构：

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

来源：

CURRENT APPLIED PHYSICS | 2007年 / 7卷 / 06期

基金：

中国国家自然科学基金;

关键词：

zinc oxide nanomaterial; patterned growth; field-emission;

D O I：

10.1016/j.cap.2007.03.009

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A simple and self-catalytic method has been developed for synthesizing finely patterned ZnO nanorods on ITO-glass substrates under a low temperature of 500 degrees C. The patterned ZnO nanorod arrays, a unit area is of similar to 400 x 100 mu m(2), are synthesized via vapor phase transport method. The surface morphology and composition of the as-synthesized ZnO nanorods are characterized by means of scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX). The mechanism of formation of ZnO nanorods is also discussed. The measurement of field emission (FE) reveals that the as-synthesized ZnO nanorods arrays have a turn-on field of 3.3 V/ 2 2 mu m at the current density of 0.1 mu A/cm(2) and a low threshold field of 6.2 V/mu m at the current density of 1 mA/cm(2). So this approach must have a potential application of fabricating micropatterned oxide thin films used in FE-based flat panel displays. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：702 / 706

页数：5

共 22 条

[1] Optically pumped lasing of ZnO at room temperature [J].

Bagnall, DM ;

Chen, YF ;

Zhu, Z ;

Yao, T ;

Koyama, S ;

Shen, MY ;

Goto, T .

APPLIED PHYSICS LETTERS, 1997, 70 (17) :2230-2232

[2] Plasma assisted molecular beam epitaxy of ZnO on c-plane sapphire: Growth and characterization [J].

Chen, YF ;

Bagnall, DM ;

Koh, HJ ;

Park, KT ;

Hiraga, K ;

Zhu, ZQ ;

Yao, T .

JOURNAL OF APPLIED PHYSICS, 1998, 84 (07) :3912-3918

[3] Two field-emission states of single-walled carbon nanotubes [J].

Collazo, R ;

Schlesser, R ;

Sitar, Z .

APPLIED PHYSICS LETTERS, 2001, 78 (14) :2058-2060

[4] Functional nanoscale electronic devices assembled using silicon nanowire building blocks [J].

Cui, Y ;

Lieber, CM .

SCIENCE, 2001, 291 (5505) :851-853

[5] ZnO nanowires formed on tungsten substrates and their electron field emission properties [J].

Dong, LF ;

Jiao, J ;

Tuggle, DW ;

Petty, JM ;

Elliff, SA ;

Coulter, M .

APPLIED PHYSICS LETTERS, 2003, 82 (07) :1096-1098

[6] Growth of nanowire superlattice structures for nanoscale photonics and electronics [J].

Gudiksen, MS ;

Lauhon, LJ ;

Wang, J ;

Smith, DC ;

Lieber, CM .

NATURE, 2002, 415 (6872) :617-620

[7] Field-emission studies on thin films of zinc oxide nanowires [J].

Jo, SH ;

Lao, JY ;

Ren, ZF ;

Farrer, RA ;

Baldacchini, T ;

Fourkas, JT .

APPLIED PHYSICS LETTERS, 2003, 83 (23) :4821-4823

[8] Selective growth of ZnO nanodots prepared by metalorganic chemical vapor deposition on focused-ion beam-nanopatterned substrates [J].

Kim, SW ;

Kotani, T ;

Ueda, M ;

Fujita, S ;

Fujita, S .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4) :601-605

[9] Field emission from well-aligned zinc oxide nanowires grown at low temperature [J].

Lee, CJ ;

Lee, TJ ;

Lyu, SC ;

Zhang, Y ;

Ruh, H ;

Lee, HJ .

APPLIED PHYSICS LETTERS, 2002, 81 (19) :3648-3650

[10] Stable field emission from tetrapod-like ZnO nanostructures [J].

Li, QH ;

Wan, Q ;

Chen, YJ ;

Wang, TH ;

Jia, HB ;

Yu, DP .

APPLIED PHYSICS LETTERS, 2004, 85 (04) :636-638

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