Synthesis of nanocoral structured TiO2 and its photoelectrical performance in dye sensitized solar cells

Abstract

TiO2 nanorods with multidirectional coral-like structure were synthesized through a facial hydrolysis and condensation method by using titanium oxysulfate (TiOSO4) as the precursor. TiO2 nanorods were continuously formed on substrates in aqueous TiOSO 4-H2O2, which resulted in the deposition of amorphous films. The phase transformation to anatase and rutile TiO2 could be achieved through the sintering treatment. The morphology and crystalline properties of the samples were characterized by X-ray diffraction, field emission scanning electron microscopy and high-resolution transmission electron microscopy. In addition, the dye sensitized solar cells (DSSCs) were fabricated with this nanocoral structured TiO2 for the photoanode, and the highest photoelectrical conversion efficiency (η) of 0.9% was obtained from the DSSC that composed of 600 °C sintered TiO2.

Department(s)

Physics, Astronomy, and Materials Science

Document Type

Conference Proceeding

DOI

https://doi.org/10.1149/05322.0057ecst

Publication Date

1-1-2013

Journal Title

ECS Transactions

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