Synthesis and field emission of two kinds of hierarchical SnO2 nanostructures

被引：21

作者：

Wang, Qingyan ^{[1
]}

Yu, Ke ^{[1
]}

Xu, Feng ^{[1
]}

机构：

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

来源：

SOLID STATE COMMUNICATIONS | 2007年 / 143卷 / 4-5期

基金：

中国国家自然科学基金;

关键词：

hierarchical SnO2 nanostructures; vapor phase transport; field emission;

D O I：

10.1016/j.ssc.2007.05.023

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Novel self-organized hierarchical SnO2 nanostructures, have been successfully prepared by vapor phase transport with the assistance of a stainless steel grid at 950 degrees C. Scanning electron microscopy shows that the two kinds of products synthesized display interesting sallow-like and fishbone-like morphologies, in which numerous secondary branches are grown randomly around the main stems. Transmission electron microscopy analysis indicates that SnO2 nanowires are single crystals. Field emission measurements of these nanostructures showed a high emission current density and low turn-on field of 1.88 and 2.36 V mu m(-1), which is comparable to that of one-dimensional SnO2 nanostructure. We also studied the influence of gas adsorption on the field emission properties of hierarchical SnO2 nanostructures. The good performance for field emission makes the hierarchical SnO2 nanostructures promising candidates for further applications in field emission microelectronic devices. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：260 / 263

页数：4

共 19 条

[1] Synthesis and ethanol sensing characteristics of single crystalline SnO2 nanorods -: art. no. 233503 [J].

Chen, YJ ;

Xue, XY ;

Wang, YG ;

Wang, TH .

APPLIED PHYSICS LETTERS, 2005, 87 (23) :1-3

[2] Three behavioral states observed in field emission from single-walled carbon nanotubes [J].

Dean, KA ;

von Allmen, P ;

Chalamala, BR .

JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B, 1999, 17 (05) :1959-1969

[3] Current saturation mechanisms in carbon nanotube field emitters [J].

Dean, KA ;

Chalamala, BR .

APPLIED PHYSICS LETTERS, 2000, 76 (03) :375-377

[4] Self-catalysis and phase transformation in the formation of CdSe nanosaws [J].

Ding, Y ;

Ma, C ;

Wang, ZL .

ADVANCED MATERIALS, 2004, 16 (19) :1740-+

[5] Dye sensitization of nanocrystalline tin oxide by perylene derivatives [J].

Ferrere, S ;

Zaban, A ;

Gregg, BA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1997, 101 (23) :4490-4493

[6] Nanopropeller arrays of zinc oxide [J].

Gao, PX ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2004, 84 (15) :2883-2885

[7] ELECTRICAL AND OPTICAL CHARACTERIZATION OF SBSNO2 [J].

HE, YS ;

CAMPBELL, JC ;

MURPHY, RC ;

ARENDT, MF ;

SWINNEA, JS .

JOURNAL OF MATERIALS RESEARCH, 1993, 8 (12) :3131-3134

[8] 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

[9]

LIEBER C, 2002, NATURE, V319, P553

[10]

Liu YK, 2001, ADV MATER, V13, P1883, DOI 10.1002/1521-4095(200112)13:24<1883::AID-ADMA1883>3.0.CO

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