New modified sol–gel method for preparation SrTiO3 nanostructures and their application in dye-sensitized solar cells

Sousan Gholamrezaei1, Masoud Salavati Niasari1,2, Mahnaz Dadkhah2, Bijan Sarkhosh3
1Institute of Nano Science and Nano Technology, University of Kashan, Kashan, I. R. Iran
2Departments of Inorganic Chemistry, Faculty of Chemistry, University of Kashan, Kashan, I. R. Iran
3Department of Chemistry, University of Isfahan, Isfahan, I. R. Iran

Tóm tắt

In this work a modified sol–gel approaches was used to prepare SrTiO3 nanostructures. The different ligands were applied for modification of sol–gel rout. SrTiO3 nanostructures was characterized by X-ray diffraction, scanning electron microscopy, and Fourier transform infrared techniques X-ray energy dispersive spectroscopy and diffuse reflectance UV–visible spectroscopy. Sandwich type of solar cell was prepared by as-prepared SrTiO3. Eosin Yellow has been used to sensitize the solar cell. The effect of morphology and paste formation method were investigated on cell’s efficiency. The fill factor (FF), open circuit voltage (Voc) and short circuit current (Jsc) were obtained by I–V curve device characteristics are as follows: Voc = 62 mV, Jsc = 1.6 mA/cm2 and FF = 0.59 and Eff = 0.58 %. The efficiency and JSC value of solar cells are affected by the thin film’s surface morphology and the morphology of SrTiO3 nanostructures. In this work, the Jsc was improved four times in comparison with the results of other research groups.

Tài liệu tham khảo

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