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

[11] ZnO nanoneedles with tip surface perturbations: Excellent field emitters [J].

Li, YB ;

Bando, Y ;

Golberg, D .

APPLIED PHYSICS LETTERS, 2004, 84 (18) :3603-3605

[12] Growth of p-type zinc oxide films by chemical vapor deposition [J].

Minegishi, K ;

Koiwai, Y ;

Kikuchi, Y ;

Yano, K ;

Kasuga, M ;

Shimizu, A .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1997, 36 (11A) :L1453-L1455

[13] Electroluminescence in n-ZnO nanorod arrays vertically grown on p-GaN [J].

Park, WI ;

Yi, GC .

ADVANCED MATERIALS, 2004, 16 (01) :87-+

[14] Size-dependent surface luminescence in ZnO nanowires [J].

Shalish, I ;

Temkin, H ;

Narayanamurti, V .

PHYSICAL REVIEW B, 2004, 69 (24) :245401-1

[15] Selective growth of ZnO nanoneedles on Si substrates by metalorganic chemical vapor deposition [J].

Tak, Y ;

Yong, KJ ;

Park, C .

JOURNAL OF CRYSTAL GROWTH, 2005, 285 (04) :549-554

[16] Room-temperature ultraviolet laser emission from self-assembled ZnO microcrystallite thin films [J].

Tang, ZK ;

Wong, GKL ;

Yu, P ;

Kawasaki, M ;

Ohtomo, A ;

Koinuma, H ;

Segawa, Y .

APPLIED PHYSICS LETTERS, 1998, 72 (25) :3270-3272

[17] Characterization and field-emission properties of needle-like zinc oxide nanowires grown vertically on conductive zinc oxide films [J].

Tseng, YK ;

Huang, CJ ;

Cheng, HM ;

Lin, IN ;

Liu, KS ;

Chen, IC .

ADVANCED FUNCTIONAL MATERIALS, 2003, 13 (10) :811-814

[18] Fabrication and ethanol sensing characteristics of ZnO nanowire gas sensors [J].

Wan, Q ;

Li, QH ;

Chen, YJ ;

Wang, TH ;

He, XL ;

Li, JP ;

Lin, CL .

APPLIED PHYSICS LETTERS, 2004, 84 (18) :3654-3656

[19] ZnO nanopencils: Efficient field emitters [J].

Wang, RC ;

Liu, CP ;

Huang, JL ;

Chen, SJ ;

Tseng, YK ;

Kung, SC .

APPLIED PHYSICS LETTERS, 2005, 87 (01)

[20]

Wu JJ, 2002, ADV MATER, V14, P215, DOI 10.1002/1521-4095(20020205)14:3<215::AID-ADMA215>3.0.CO

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