Nano Express

Nanoscale Research Letters

, Volume 2, Issue 8, pp 405-409

Open Access This content is freely available online to anyone, anywhere at any time.

Tungsten Oxide Nanorods Array and Nanobundle Prepared by Using Chemical Vapor Deposition Technique

  • X. P. WangAffiliated withDepartment of Physics, University of Puerto Rico
  • , B. Q. YangAffiliated withDepartment of Physics, University of Puerto Rico
  • , H. X. ZhangAffiliated withDepartment of Physics, University of Puerto Rico
  • , P. X. FengAffiliated withDepartment of Physics, University of Puerto Rico Email author 

Abstract

Tungsten oxide (WO3) nanorods array prepared using chemical vapor deposition techniques was studied. The influence of oxygen gas concentration on the nanoscale tungsten oxide structure was observed; it was responsible for the stoichiometric and morphology variation from nanoscale particle to nanorods array. Experimental results also indicated that the deposition temperature was highly related to the morphology; the chemical structure, however, was stable. The evolution of the crystalline structure and surface morphology was analyzed by scanning electron microscopy, Raman spectra and X-ray diffraction approaches. The stoichiometric variation was indicated by energy dispersive X-ray spectroscopy and X-ray photoelectron spectroscopy.

Keywords

Nanostructure Tungsten oxide Nanorod Nanobundle CVD