Photo-electrochemical studies of chemically deposited nanocrystalline meso-porous n-type TiO2 thin films for dye-sensitized solar cell (DSSC) using simple synthesized azo dye

作者：Ezema C G^*; Nwanya A C; Ezema B E; Patil B H; Bulakhe R N; Ukoha P O; Lokhande C D; Maaza Malik; Ezema Fabian I

来源：Applied Physics A, 2016, 122(4): 435.

DOI：10.1007/s00339-016-9965-2

Nanocrystalline titanium dioxide (TiO2) thin films were deposited by successive ionic layer adsorption and reaction method onto fluorine doped tin oxide coated glass substrate at room temperature (300 K). Titanium trichloride and sodium hydroxide were used as cationic and anionic sources, respectively. The as-deposited and annealed films were characterized for structural, morphological, optical, electrical and wettability properties. The photoelectrochemical study of TiO2 sensitized with a laboratory synthesized organic dye (azo) was evaluated in the polyiodide electrolyte at 40 mW cm(-2) light illumination intensity. The photovoltaic characteristics show a fill factor of 0.24 and solar conversion efficiency value of 0.032 % for a TiO2 thickness of 0.96 mu m as compared to efficiency of 0.014 % for rose Bengal of the same thickness.

• 出版日期2016-4
• 单位UNESCO