Fabrication and characterization of tetrapod-like ZnO nanostructures prepared by catalyst-free thermal evaporation

被引：55

作者：

Feng, Libing ^{[1
]}

Liu, Aihua ^{[1
]}

Liu, Mei ^{[1
]}

Ma, Yuying ^{[1
]}

Wei, Jing ^{[1
]}

Man, Baoyuan ^{[1
]}

机构：

[1] Shandong Normal Univ, Coll Phys & Elect, Jinan 250014, Peoples R China

来源：

MATERIALS CHARACTERIZATION | 2010年 / 61卷 / 01期

基金：

中国国家自然科学基金;

关键词：

Nanostructures; Zinc oxide (ZnO); Thermal evaporation; Photoluminescence; LOW-TEMPERATURE GROWTH; FIELD-EMISSION; PHOTOLUMINESCENCE; NANORODS; DEPOSITION; ROUTE; MODEL;

D O I：

10.1016/j.matchar.2009.10.011

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tetrapod-like ZnO nanostructures were fabricated on ZnO-coated sapphire (001) substrates by two steps: pulsed laser deposition (PLD) and catalyst-free thermal evaporation process. First, the ZnO films were pre-deposited on sapphire (001) substrates by PLD. Then the ZnO nanostructures grew on ZnO-coated sapphire (001) substrate by the simple thermal evaporation of the metallic zinc powder at 900 degrees C in the air without any catalysts. The pre-deposited ZnO films by PLD on the substrates can provide growing sites for the ZnO nanostructures. The as-synthesized ZnO nanostructures were characterized by using X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and Fourier transform infrared spectrum (FTIR). The results show that the tetrapod-like ZnO narrostructures are highly crystalline with the wurtzite hexagonal structure. Photoluminescence (PL) spectrum of as-synthesized nanostructures exhibits a UV emission peak at similar to 389 nm and a broad green emission peak at similar to 513 nm. In addition, the growth mechanism of ZnO nanostructures is also briefly discussed. (C) 2009 Elsevier Inc. All rights reserved.

引用

页码：128 / 133

页数：6

共 43 条

[11] Large-scale GaN nanobelts and nanowires grown from milled Ga2O3 powders [J].

Jian, JK ;

Chen, XL ;

He, M ;

Wang, WJ ;

Zhang, XN ;

Shen, F .

CHEMICAL PHYSICS LETTERS, 2003, 368 (3-4) :416-420

[12] Synthesis and characterization of aligned ZnO nanorods on porous aluminum oxide template [J].

Jie, JS ;

Wang, GZ ;

Wang, QT ;

Chen, YM ;

Han, XH ;

Wang, XP ;

Hou, JG .

JOURNAL OF PHYSICAL CHEMISTRY B, 2004, 108 (32) :11976-11980

[13] Synthesis of novel zinc oxide microphone-like microstructures [J].

Khan, Aurangzeb ;

Kordesch, Martin E. .

MATERIALS LETTERS, 2008, 62 (02) :230-234

[14]

Lao JY, 2004, APPL PHYS A-MATER, V78, P539, DOI 10.1007/S00339-003-2391-2

[15] ZnO nanobridges and nanonails [J].

Lao, JY ;

Huang, JY ;

Wang, DZ ;

Ren, ZF .

NANO LETTERS, 2003, 3 (02) :235-238

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

Law, M ;

Greene, LE ;

Johnson, JC ;

Saykally, R ;

Yang, PD .

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

[17] 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

[18] Effect of temperature on pulsed laser deposition of ZnO films [J].

Liu, M. ;

Wei, X. Q. ;

Zhang, Z. G. ;

Sun, G. ;

Chen, C. S. ;

Xue, C. S. ;

Zhuang, H. Z. ;

Man, B. Y. .

APPLIED SURFACE SCIENCE, 2006, 252 (12) :4321-4326

[19] Low temperature growth and photoluminescence of well-aligned zinc oxide nanowires [J].

Lyu, SC ;

Zhang, Y ;

Ruh, H ;

Lee, HJ ;

Shim, HW ;

Suh, EK ;

Lee, CJ .

CHEMICAL PHYSICS LETTERS, 2002, 363 (1-2) :134-138

[20] Three-dimensional functionalized tetrapod-like ZnO nanostructures for plasmid DNA delivery [J].

Nie, L ;

Gao, LZ ;

Feng, P ;

Zhang, JY ;

Fu, XQ ;

Liu, YG ;

Yan, XY ;

Wang, TH .

SMALL, 2006, 2 (05) :621-625

← 1 2 3 4 5 →