Rapid formation of tungsten oxide nanobundles with controllable morphology

被引：7

作者：

Hsieh, Y. T. ^{[3
]}

Chen, U. S. ^{[3
]}

Hsueh, S. H. ^{[3
]}

Huang, M. W. ^{[2
]}

Shih, H. C. ^{[1
,3
]}

机构：

[1] Chinese Culture Univ, Inst Nanomat, Dept Chem & Mat Engn, Taipei 111, Taiwan

[2] Natl Chung Hsing Univ, Dept Mat Sci & Engn, Taichung 402, Taiwan

[3] Natl Tsing Hua Univ, Dept Mat Sci & Engn, Hsinchu 300, Taiwan

来源：

APPLIED SURFACE SCIENCE | 2011年 / 257卷 / 08期

关键词：

Tungsten oxide nanobundles; Rapid formation; Controllable morphology; NANOWIRES; GROWTH; NANOSTRUCTURES; NANORODS;

D O I：

10.1016/j.apsusc.2010.11.063

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：

Tungsten oxide (W18O49) nanobundles with controllable morphology were fabricated on Si substrates within 5 min by microwave plasma-enhanced chemical vapor deposition (MPECVD). The crystal structure and chemical composition of these nanobundles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), and energy-dispersive X-ray spectroscopy (EDS). The results of these characterizations confirmed the formation of W18O49 nanobundles with [0 1 0] as the major growth direction. SEM images showed that the nanobundles were several micrometers long with diameters of 20-500 nm. The morphology of the nanobundles can be controlled by simply adjusting the reaction times to the desired level; nanowires (diameter: 15-30 nm), nanorods (diameter: 40-60 nm), and nanoslabs (thickness: 30 nm) were formed at 1.5, 3, and 4 min, respectively. With an increase in reaction times, the nanobundles steadily increased in dimensions to form nanoslabs. Thus, our results indicated that MPECVD is highly effective and suitable for fabrication of various tungsten oxide nanobundles. (C) 2010 Elsevier B. V. All rights reserved.

引用

页码：3504 / 3509

页数：6

共 31 条

[1] Nano-scale effects of swift heavy ion irradiation in SiOx layers and multilayers [J].

Arnoldbik, W. M. ;

Knoesen, D. ;

Tomozeiu, N. ;

Habraken, F. H. P. M. .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 2007, 258 (01) :199-204

[2] An approach for synthesizing various types of tungsten oxide nanostructure [J].

Chi, Lingfei ;

Xu, Ningsheng ;

Deng, Shaozhi ;

Chen, Jun ;

She, Juncong .

NANOTECHNOLOGY, 2006, 17 (22) :5590-5595

[3]

Gomez A.H., 2009, SURF INTERFACE ANAL, V41, P840

[4] Nanowire-based electrochromic devices [J].

Gubbala, S. ;

Thangala, J. ;

Sunkara, M. K. .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2007, 91 (09) :813-820

[5] Hydrothermal synthesis and characterization of self-assembled h-WO3 nanowires/nanorods using EDTA salts [J].

Ha, Jang-Hoon ;

Muralidharan, P. ;

Kim, Do Kyung .

JOURNAL OF ALLOYS AND COMPOUNDS, 2009, 475 (1-2) :446-451

[6] Synthesizing tungsten oxide nanowires by a thermal evaporation method [J].

Hong, Kunquan ;

Xie, Maohai ;

Hu, Rong ;

Wu, Huasheng .

APPLIED PHYSICS LETTERS, 2007, 90 (17)

[7] Tungsten oxide nanowires synthesized by a catalyst-free method at low temperature [J].

Hong, Kunquan ;

Xie, Maohai ;

Wu, Huasheng .

NANOTECHNOLOGY, 2006, 17 (19) :4830-4833

[8] Cu2O/n-ZnO nanowire solar cells on ZnO:Ga/glass templates [J].

Hsueh, Ting-Jen ;

Hsu, Cheng-Liang ;

Chang, Shoou-Jinn ;

Guo, Pei-Wen ;

Hsieh, Jang-Hsing ;

Chen, I-Cherng .

SCRIPTA MATERIALIA, 2007, 57 (01) :53-56

[9] Growth of uniform tungsten oxide nanowires with small diameter via a two-step heating process [J].

Hu, Rong ;

Wu, Huasheng ;

Hong, Kunquan .

JOURNAL OF CRYSTAL GROWTH, 2007, 306 (02) :395-399

[10] Synthesis and field-emission properties of the tungsten oxide nanowire arrays [J].

Huang, Kai ;

Pan, Qingtao ;

Yang, Feng ;

Ni, Shibi ;

He, Deyan .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2007, 39 (02) :219-222

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