Photo-electrochemical studies of chemically deposited nanocrystalline meso-porous n-type TiO sub(2) thin films for dye-sensitized solar cell (DSSC) using simple synthesized azo dye

Nanocrystalline titanium dioxide (TiO sub(2)) 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, resp...

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Bibliographic Details
Published in:Applied physics. A, Materials science & processing Materials science & processing, 2016-04, Vol.122 (4), p.1-10
Main Authors: Ezema, C G, Nwanya, A C, Ezema, B E, Patil, B H, Bulakhe, R N, Ukoha, PO, Lokhande, C D, Maaza, Malik, Ezema, Fabian I
Format: Article
Language:English
Subjects:
Azo
Efficiency
Nanocrystals
Photovoltaic cells
Solar cells
Synthesis
Thin films
Titanium dioxide
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Summary:Nanocrystalline titanium dioxide (TiO sub(2)) 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 TiO sub(2) sensitized with a laboratory synthesized organic dye (azo) was evaluated in the polyiodide electrolyte at 40 mW cm super(-2) light illumination intensity. The photovoltaic characteristics show a fill factor of 0.24 and solar conversion efficiency value of 0.032 % for a TiO sub(2) thickness of 0.96 mu m as compared to efficiency of 0.014 % for rose Bengal of the same thickness.
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-016-9965-2