Fabrication of Core-Shell Structured TiO2/MgO Electrodes for Dye-Sensitized Solar Cells

S. Karuppuchamy; C. Brundha

doi:10.4028/www.scientific.net/AMM.787.3

Paper Titles

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Fabrication of Core-Shell Structured TiO₂/MgO Electrodes for Dye-Sensitized Solar Cells
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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 787Fabrication of Core-Shell Structured TiO2/MgO...

Fabrication of Core-Shell Structured TiO₂/MgO Electrodes for Dye-Sensitized Solar Cells

Abstract:

We demonstrated the construction and performance of dye-sensitized solar cells (DSCs) based on nanoparticles of TiO₂ coated with thin shells of MgO by simple solution growth technique. The XRD patterns confirm the presence of both TiO₂and MgO in the core-shell structure. The effect of varied shell thickness on the photovoltaic performance of the core-shell structured electrode is also investigated. We found that MgO shells of all thicknesses perform as barriers that improve open-circuit voltage (Voc) of the DSCs only at the expense of a larger decrease in short-circuit current density (Jsc). The energy conversion efficiency was greatly dependent on the thickness of MgO on TiO₂ film, and the highest efficiency of 4.1% was achieved at the optimum MgO shell layer.

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Applied Mechanics and Materials (Volume 787)

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3-7

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https://doi.org/10.4028/www.scientific.net/AMM.787.3

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Online since:

August 2015

Authors:

S. Karuppuchamy*, C. Brundha

Keywords:

Core-Shell Structure, Dye-Sensitized Solar Cells, Recombination, Sensitizer, TiO₂/MgO

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