A modified sol-gel method for preparing nanostructured Nb-doped TiO2 DSSC photoanode

Author

Musa, M.Z. ; Mamat, M.H. ; Abdullah, M.H. ; Malek, M.F. ; Nor, A.M. ; Rasheid, N.A. ; Noor, U.M. ; Rusop, M.

Author_Institution

Fac. of Electr. Eng., Univ. Teknol. MARA (UiTM), Shah Alam, Malaysia

fYear

2012

fDate

24-27 June 2012

Firstpage

617

Lastpage

620

Abstract

Nb-doped TiO₂ thin films have been successfully prepared using liquid phase solution method. For the first time, Nb-doped sol-gel has been combined with commercially available TiO₂ nanopowder (Degussa P25) for preparing Nb-doped TiO₂ photoanode for DSSC application. EDX analysis confirms the presence of Nb in the thin films. Nb-doped TiO₂ sample showed improvement in term of electrical resistivity characteristic compared to undoped sample with 8.0 at% Nb-doped sample having the lowest resistivity value. When utilized as photoanode in DSSC, the energy conversion efficiency showed an improvement of 81.3% compared to the undoped one.

Keywords

X-ray chemical analysis; anodes; doping; electrical resistivity; liquid phase deposition; nanofabrication; nanoparticles; niobium; sol-gel processing; solar cells; thin films; titanium compounds; Degussa P25; EDX; TiO₂:Nb; doped thin films; dye-sensitized solar cell applications; electrical resistivity; energy conversion efficiency; liquid phase solution method; nanopowder; photoanode; sol-gel method; Conductivity; Decision support systems; Doping; Films; Niobium; Photovoltaic cells; Titanium; DSSC; Nb doping; sol-gel preparation; structural properties; thin films; titanium dioxide;

fLanguage

English

Publisher

ieee

Conference_Titel

Humanities, Science and Engineering Research (SHUSER), 2012 IEEE Symposium on

Conference_Location

Kuala Lumpur

Print_ISBN

978-1-4673-1311-7

Type

conf

DOI

10.1109/SHUSER.2012.6268896

Filename

6268896