Skip to main content Accessibility help
×
Home

The most powerful tool for the structural analysis of tungsten suboxide nanowires: Raman spectroscopy

  • Dong Yu Lu (a1), Jian Chen (a2), Shao Zhi Deng (a1), Ning Sheng Xu (a1) and Wei Hong Zhang (a3)...

Abstract

Crystalline tungsten suboxide nanowires were grown on silicon substrates by thermal evaporation of tungsten powder in a flow of argon gas without any catalyst. With different growth temperatures, two kinds of tungsten suboxide nanowires (W18O49 and W20O58) were obtained. The structures, morphologies, and compositions of these two nanowires were characterized by scanning electron microscopy (SEM), electron probe microanalyzer (EPMA), x-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), x-ray photoelectron spectroscopy (XPS), and Raman techniques. The results show that XRD and TEM are not good characterization techniques for identifying W18O49 and W20O58 nanowires; however, Raman spectroscopy (RS) is a powerful tool to distinguish the difference between them. This is due to the notable molecular bond contributing to the vibrational frequency.

Copyright

Corresponding author

a) Address all correspondence to these authors. e-mail: puscj@mail.sysu.edu.cn
b) Address all correspondence to these authors. e-mail: stsxns@mail.sysu.edu.cn

References

Hide All
1Santato, C., Odziemkowski, M., Ulmann, M.Augustynski, J.: Crystallographically oriented mesoporous WO3 films: Synthesis, characterization, and applications. J. Am. Chem. Soc. 123, 10639 2001
2Granqvist, C.G.: Electrochromic tungsten oxide films: Review of progress 1993–1998. Sol. Energy Mater. Sol. Cells 60, 201 2000
3Baeck, S.H., Choi, K.S., Jaramillo, T.F., Stucky, G.D.McFarland, E.W.: Enhancement of photocatalytic and electrochromic properties of electrochemically fabricated mesoporous WO3 thin films. Adv. Mater. 15, 1269 2003
4Solis, J.L., Saukko, S., Kish, L., Granqvist, C.G.Lantto, V.: Semiconductor gas sensors based on nanostructured tungsten oxide. Thin Solid Films 391, 255 2001
5Qu, W.M.Wlodarski, W.: A thin-film sensing element for ozone, humidity and temperature. Sens. Actuators, B 64, 42 2000
6Shengelaya, A., Reich, S., Tsabba, Y.Müller, K.A.: Electron spin resonance and magnetic susceptibility suggest superconductivity in Na doped WO3 samples. Eur. Phys. J. B. 12, 13 1999
7Li, X.L., Liu, J.F.Li, Y.D.: Large-scale synthesis of tungsten oxide nanowires with high aspect ratio. Inorg. Chem. 42, 921 2003
8Liu, J.G., Zhao, Y.Zhang, Z.J.: Low-temperature synthesis of large-scale arrays of aligned tungsten oxide nanorods. J. Phys. Condens. Matter 15, L453 2003
9Zhang, H.R., Feng, M., Liu, F., Liu, L.B., Chen, H.Y., Gao, H.J.Li, J.Q.: Structures and defects of WO3–x nanorods grown by in-situ heating tungsten filament. Chem. Phys. Lett. 389, 337 2004
10Xiao, Z.D., Zhang, L.D., Tian, X.K.Fang, X.S.: Fabrication and structural characterization of porous tungsten oxide nanowires. Nanotechnology 16, 2647 2005
11Wang, S.J., Chen, C.H., Ko, R.M., Kuo, Y.C., Wong, C.H., Wu, C.H., Uang, K.M., Chen, T.M.Liou, B.W.: Preparation of tungsten oxide nanowires from sputter-deposited WCx films using an annealing/oxidation process. Appl. Phys. Lett. 86, 63103 2005
12Zhou, J., Gong, L., Deng, S.Z., Chen, J., She, J.C., Xu, N.S., Yang, R.S.Wang, Z.L.: Growth and field-emission property of tungsten oxide nanotip arrays. Appl. Phys. Lett. 87, 223108 2005
13Frey, G.L., Rothschild, A., Sloan, J., Rosentsveig, R., Popovitz-Biro, R.Tenne, R.: Investigations of nonstoichiometric tungsten oxide nanoparticles. J. Solid State Chem. 162, 300 2001
14Zhou, J., Xu, N.S., Deng, S.Z., Chen, J., She, J.C.Wang, Z.L.: Large-area nanowire arrays of molybdenum and molybdenum oxides: Synthesis and field-emission properties. Adv. Mater. 15, 1835 2003
15Zhou, J., Ding, Y., Deng, S.Z., Gong, L., Xu, N.S.Wang, Z.L.: Three-dimensional tungsten oxide nanowire networks. Adv. Mater. 17, 2107 2005
16 JCPDS Nos. 5-0392, 5-0393, and 5-0386. International Center for Diffraction Data; Newton Square, PA, 1974
17Bigey, C., Hilaire, L.Maire, G.: Catalysis on Pd/WO3 and Pd/WO2: Effect of the modifications of the surface states due to redox treatments on the skeletal rearrangement of hydrocarbons. J. Catal. 184, 406 1999
18Guo, D.Z., Yu-Zhang, K., Gloter, A., Zhang, G.A.Xue, Z.Q.: Synthesis and characterization of tungsten oxide nanorods. J. Mater. Res. 19, 3665 2004
19Lu, D.Y., Chen, J., Zhou, J., Deng, S.Z., Xu, N.S.Xu, J.B.: Raman spectroscopic study of oxidation and phase transition in W18O49 nanowires. J. Raman Spectrosc. 38, 176 2007
20Cazzanelli, E., Vinegoni, C., Mariotto, G., Kuzmin, A.Purans, J.: Low-temperature polymorphism in tungsten trioxide powders and its dependence on mechanical treatments. J. Solid State Chem. 143, 24 1999
21Sahle, W.: Electron-microscopy studies of W18O49: 1. Crystals formed by gaseous reduction of WO3. J. Solid State Chem. 45, 324 1982

Keywords

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed