Abstract

The pure and tungsten doped titanium oxide WxTi1-xO2 (x=0, 0.1) thin films have been successfully deposited on the glass substrate at 400 °C using spray pyrolysis technique. The structural properties of the prepared films were characterized by X-Ray Diffraction (XRD). From the XRD spectrum, the sample shows the amorphous structure. Their surface morphology was probed using Scanning Electron Microscopy (SEM) and the mechanical properties, topography and surface roughness of the grown films was investigated by Atomic Force Microscopy (AFM). The functional group and optical characteristic of prepared films were analyzed by Fourier Transform Infra-Red (FT-IR) spectroscopy and UV-Vis-double beam spectrometer.  The optical energy gap was determined by transmittance measurement.

Keywords

Thin films, Spray Pyrolysis, Titanium Oxides, Optical properties, FTIR,

Downloads

Download data is not yet available.

References

  1. A. Subrahmanyam, C. Suresh Kumar and K. Muthu Karuppasam, A note on fast protonic solid state electrochromic device: NiOx/Ta2O5/WO3-x, Solar Energy Materials and Solar Cells, 91(2007) 62–66.
  2. C.G. Granqvist, Electrochromic tungsten oxide films: Review of progress 1993- 1998, Solar Energy Materials and Solar Cells, 60 (2000) 201-262.
  3. C.G. Granqvist, Progress in electrochromics: tungsten oxide revisited, Electrochimica Acta, 44(1999) 3005–3015
  4. J.S. Hale, M. Devries, B. Dworak, J.A. Woollam, Visible and Infrared Optical Constants of Electrochromic materials for Emissivity Modulation Applications, Thin Solid Films, 313-314(1998) 205-209.
  5. P.V. Ashrit, G. Bader, V. van Truong, Electrochromic properties of nanocrystalline tungsten oxide thin films, Thin Solid Films, 320 (1998) 324- 328.
  6. A. Hjelm, C.G. Granqvist, J.M. Wills, Electronic structure and optical properties of WO3, LiWO3, NaWO3, and HWO3, Physical Review B, 54 (1996) 2436.
  7. D. Gogova, K. Gesheva, A. Szekeres, M. Sendova-Vassileva, Structural and Optical Properties of CVD Thin Tungsten Oxide Films, Physica Status Solidi A, 176 (1999) 969-984.
  8. K. Gesheva, A. Szekeres, T. Lvanova, Optical properties of chemical vapour deposited thin films of molybdenum and tungsten based metal oxides, Solar Energy Materials and Solar Cells, 76(2003) 563-576.
  9. J.K. Park, H.K. Kim, Preparation and Characterization of Hydrophilic TiO2 Films, Bulletin of the Korean Chemical Society, 23 (2002) 745-748.
  10. Z. Wang, X. Hu, Electrochromic properties of TiO2-doped WO3 films spin-coated from Ti-stabilized peroxotungstic acid, Electrochimica Acta, 46 (2001) 1951-1956.
  11. S.B. Patil, S.R. Mane, V.R. Patil, R.R. Kharade and P.N. Bhosale, Chemosynthesis and characterization of electrochromic vanadium doped molybdenum oxide thin films, Archives of Applied Science Research, 3(2011) 481-491
  12. A.J. More, R.S. Patil, D.S. Dalavi, S.S. Mali, C.K. Hong, M.G. Gang, J.H. Kim, P.S. Patil, Electro deposition of nano-granular tungsten oxide thin films for smart window application, Materials Letters, 134 (2014) 298-301.
  13. NilgUn Ozer and NilgUn Doan, Study of electrochromism in Ti:WO3 films by sol-gel process, Inorganic Optical Materials, 3424 (1998) 106.
  14. J. Isidorsson, C.G. Granqvist, Electrochromism of Li-intercalated Sn oxide films made by sputtering, Solar Energy Materials and Solar Cells, 44 (1996) 375-381.
  15. Y.H. Choa, Y.C. Kangb, J-H. Lee, Highly selective and sensitive detection of trimethylamine using WO3 hollow spheres prepared by ultrasonic spray pyrolysis, Sensors and Actuators B 176 (2013) 971–977.
  16. Y. Djaoued, R. Taj, R. Bruning, S. Badilescu, P.V. Ashrit, G. Bader, T. Vovan, Study of the phase transition and the thermal nitridation of nanocrystalline sol–gel titania films, Journal of Non-Crystalline Solids, 297 (2002) 55-66.
  17. I.Oja, A.Mere, M.Krunks, C-H.Solterbeck, M.Es-Sount, Properties of TiO2 Films Prepared by the Spray Pyrolysis Method, solid state phenomena, 99-100 (2004) 259-264.
  18. A.R. Balu, V.S. Nagarethinam, N. Arunkumar, M. Suganya, Nanocrystalline NiO Thin films prepared by a lowcost simplified spray technique using perfume atomizer, Journal of Electron Devices, 13 (2012) 920-930
  19. R. Mechiakh, N. Bensedrine, R. Chtourou, Sol–gel synthesis, characterization and optical properties of mercury-doped TiO2 thin films deposited on glass substrates, Applied surface science, 257 (2011) 9103-9109.
  20. C. Manoharan, R. Sridhar, Physical Properties of Spray Pyrolysed Tio2 Films, International Journal of Recent Scientific Research, 3 (2012) 775-777.
  21. K. Okimura, Low temperature growth of rutile TiO2 films in modified rf magnetron sputtering, Surface and Coatings Technology, 135 (2001) 286-290.
  22. W.W. Xu, R. Kershaw, K. Dwight, A. Wold, Preparation and characterization of TiO2 films by a novel spray pyrolysis method, Materials Research Bulletin, 25 (1990) 1385-1392.