Solution processed TiO2/BiFeO3/poly(3-hexylthiophene) solar cells

We report the fabrication of solar cells by spin-coating and annealing sol–gel layers of TiO2 and BiFeO3 on indium oxide coated glass substrates. A layer of poly(3-hexylthiophene) was spin coated onto the inorganic layers to form hybrid organic–inorganic solar cells. X-ray powder diffraction reveale...

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Bibliographic Details
Published in:Materials letters 2015-11, Vol.159, p.305-308
Main Authors: Keskin, Vedat, Gupta, Arunava, Szulczewski, Greg
Format: Article
Language:English
Subjects:
Coating
Crystallites
Ferroelectrics
Open circuit voltage
Photovoltaic cells
Polymers
Solar cells
Solar energy materials
Sol–gel preparation
Surface layer
Texture
Titanium dioxide
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Summary:We report the fabrication of solar cells by spin-coating and annealing sol–gel layers of TiO2 and BiFeO3 on indium oxide coated glass substrates. A layer of poly(3-hexylthiophene) was spin coated onto the inorganic layers to form hybrid organic–inorganic solar cells. X-ray powder diffraction revealed the BiFeO3 layers are polycrystalline with rhombohedral texture and average crystallite size about 20nm. Scanning electron microscopy images showed the films are granular and microporous. Irradiation with visible light resulted in a photocurrent of 0.05mAcm−2 and an open circuit voltage of −0.46V. [Display omitted] •Solution processing of ITO/TiO2/ BiFeO3/poly(3-hexylthiophene) solar cell.•X-ray diffraction reveals polycrystalline BiFeO3 film with rhombohedral texture.•Solar cell produced 0.05mAcm−2 and an open circuit voltage of −0.46V.
ISSN:0167-577X
1873-4979
DOI:10.1016/j.matlet.2015.06.127