Mesoporous TiO2 spheres as a photoanodic material in dye-sensitized solar cells

Nikola Tasić; Zorica Marinković Stanojević; Zorica Branković; Milan Žunić; Uroš Lačnjevac; Martina Gilić; Tatjana Novaković; Goran Branković

doi:10.2298/PAC1804374T

Processing and Application of Ceramics (Dec 2018)

Mesoporous TiO2 spheres as a photoanodic material in dye-sensitized solar cells

Nikola Tasić,
Zorica Marinković Stanojević,
Zorica Branković,
Milan Žunić,
Uroš Lačnjevac,
Martina Gilić,
Tatjana Novaković,
Goran Branković

Affiliations

Nikola Tasić: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
Zorica Marinković Stanojević: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
Zorica Branković: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
Milan Žunić: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
Uroš Lačnjevac: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia
Martina Gilić: Institute of Physics Belgrade, University of Belgrade, Pregrevica 118, 11080 Belgrade, Serbia
Tatjana Novaković: IChTM-Department of Catalysis and Chemical Engineering, University of Belgrade, Njegoševa 12, 11000 Belgrade, Serbia
Goran Branković: Institute for Multidisciplinary Research, Department of Materials Science, University of Belgrade, Kneza Višeslava 1, 11030 Belgrade, Serbia

DOI: https://doi.org/10.2298/PAC1804374T
Journal volume & issue: Vol. 12, no. 4
pp. 374 – 382

Abstract

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Mesoporous TiO2 films with spherical architectures and promising performance in dye-sensitized solar cells (DSSCs) were prepared. The morphology of the films was investigated by scanning electron microscopy. Transmission electron microscopy analysis of the spheres disclosed the elongated shape of sub-20 nm primary particles, while BET analysis revealed their high surface area of 135 m2/g. Anatase presence was observed in the films based on X-ray diffractometry, selected-area electron diffraction analysis and Raman spectroscopy analyses. Increased light scattering of the spheres in visible region was observed by UV-VIS-NIR spectroscopy. Photovoltaic performance of the operating N719-sensitized cells was tested using electrochemical impedance spectroscopy and current density-voltage (J-V) curves under simulated AM1.5 spectrum. The 0.25 cm2 cells exhibited photo-to-electric power efficiency of 4.9%, which is among noteworthy values for DSSCs with similar photoanodic structures.

Published in Processing and Application of Ceramics

ISSN: 1820-6131 (Print); 2406-1034 (Online)
Publisher: University of Novi Sad
Country of publisher: Serbia
LCC subjects: Technology: Chemical technology: Clay industries. Ceramics. Glass
Website: http://www.tf.uns.ac.rs/publikacije/PAC/index.html

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