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Erschienen in:
11.11.2015
Natural sensitizer for low cost dye sensitized solar cell based on Strontium Titanate nanoparticles
Erschienen in: Journal of Materials Science: Materials in Electronics | Ausgabe 3/2016
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Abstract
Strontium Titanate nanoparticles have been synthesized by a sol–gel method in presence of N,N′-bis(2-hydroxy-1-naphthyl) ethylenediamine as capping agent. The nanoparticles were characterized by X-ray diffraction, scanning electron microscopy, Fourier transform infrared techniques and UV–visible scanning spectrometer. The photo-anode for solar cell have been prepared by these nanoparticles and sensitized by natural extract as sensitizers. Four alcoholic extraction have been obtained from walnut sell, eggplant peel, Rubia tinctorum and alcea. These materials have been boiled and refluxed by alcohol to achieve the extract of them. The photovoltaic behavior of solar cells sensitized by natural extraction have been studied via I–V curve. The cells sensitized by the ethanolic extraction of eggplant peel show the maximum of Voc and the maximum of Jsc recorded for walnut shell and the best efficiency and the maximum of field factor in natural sensitizers observed for the cell that sensitized by ethanolic extraction of alcea.