Superior field emission properties of ZnO nanocones synthesized by pulsed laser deposition

被引：32

作者：

Bae, Joonho ^{[1
]}

Hong, Jung-Il ^{[1
]}

Han, Won Hee ^{[2
]}

Choi, Young Jin ^{[2
,3
]}

Snyder, Robert L. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Mat Sci & Engn, Atlanta, GA 30332 USA

[2] MyongJi Univ, Dept Phys, Yongin 449728, South Korea

[3] MyongJi Univ, Dept Nanosci & Engn, Yongin 449728, South Korea

来源：

CHEMICAL PHYSICS LETTERS | 2009年 / 475卷 / 4-6期

关键词：

NANOWIRES; GROWTH; ARRAYS; FILMS;

D O I：

10.1016/j.cplett.2009.05.045

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

C-axis oriented ZnO nanocones have been synthesized by pulsed laser deposition (PLD) on a Si substrate. The nanocones are 100-200 nm wide at the base and <20 nm at the tip, and are distributed fairly uniformly on the substrate at a density of approximately 100 mu m(-2). The field emission measurement of ZnO nanocones reveals that they have a large field enhancement factor of 2216 and low turn-on field of 2.57 V/mu m; the former is greater than that of ZnO nanorods with a comparable area density, suggesting that the tapered cone-like morphology is more efficient for field emission displays. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：260 / 263

页数：4

共 21 条

[1] Fabrication of ZnO Nanocone Arrays by Using Chemical Etching of ZnO Nanowire Arrays and Their Enhanced Field Emission Properties [J].

Bae, Joonho ;

Shim, Ee-Le ;

Park, Mi Na ;

Kang, C. J. ;

Choi, Young Jin .

JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2009, 54 (04) :1603-1607

[2] Thinning and diluting aligned carbon nanotube films for uniform field emission [J].

Cao, A ;

Zhang, X ;

Xu, C ;

Liang, J ;

Wu, D ;

Wei, B .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2002, 74 (03) :415-418

[3] Room-temperature ferromagnetic Co-doped ZnO nanoneedle array prepared by pulsed laser deposition [J].

Chen, JJ ;

Yu, MH ;

Zhou, WL ;

Sun, K ;

Wang, LM .

APPLIED PHYSICS LETTERS, 2005, 87 (17) :1-3

[4] ZnO nanowire field-effect transistor and oxygen sensing property [J].

Fan, ZY ;

Wang, DW ;

Chang, PC ;

Tseng, WY ;

Lu, JG .

APPLIED PHYSICS LETTERS, 2004, 85 (24) :5923-5925

[5] Inorganic semiconductor nanostructures and their field-emission applications [J].

Fang, Xiaosheng ;

Bando, Yoshio ;

Gautam, Ujjal K. ;

Ye, Changhui ;

Golberg, Dmitri .

JOURNAL OF MATERIALS CHEMISTRY, 2008, 18 (05) :509-522

[6] Nanowire dye-sensitized solar cells [J].

Law, M ;

Greene, LE ;

Johnson, JC ;

Saykally, R ;

Yang, PD .

NATURE MATERIALS, 2005, 4 (06) :455-459

[7] 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

[8] A comprehensive review of ZnO materials and devices -: art. no. 041301 [J].

Ozgür, U ;

Alivov, YI ;

Liu, C ;

Teke, A ;

Reshchikov, MA ;

Dogan, S ;

Avrutin, V ;

Cho, SJ ;

Morkoç, H .

JOURNAL OF APPLIED PHYSICS, 2005, 98 (04) :1-103

[9] Synthesis of ZnO nanowires by pulsed laser deposition in furnace [J].

Son, Hyo Jeong ;

Jeon, Kyung Ah ;

Kim, Chang Eun ;

Kim, Jong Hoon ;

Yoo, Kyung Hwa ;

Lee, Sang Yeol .

APPLIED SURFACE SCIENCE, 2007, 253 (19) :7848-7850

[10] Growth of aligned ZnO nanorod arrays by catalyst-free pulsed laser deposition methods [J].

Sun, Y ;

Fuge, GM ;

Ashfold, MNR .

CHEMICAL PHYSICS LETTERS, 2004, 396 (1-3) :21-26

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