NDLI: Cr-doped TiO$_{2}$-based dye-sensitized solar cells with Cr-doped TiO$

Content Provider	Springer Nature Link
Author	Asemi, Morteza Maleki, Saeedeh Ghanaatshoar, Majid
Copyright Year	2016
Abstract	Cr-doped TiO$_{2}$ nanoparticles were synthesized by chemical sol–gel method. The anatase phase of TiO$_{2}$ nanoparticles was proved by X-ray diffraction analysis. Furthermore, the field emission scanning electron microscopy revealed that the size of the nanoparticles was about 30 nm. TiO$_{2}$ nanoparticles with 0.5 % Cr dopant concentration were selected to fabricate dye-sensitized solar cells due to their smaller band gap. Furthermore, Cr-doped TiO$_{2}$ thin films (0.5 %) with different thicknesses were employed as blocking layer on the surface of fluorine-doped tin oxide (FTO) substrate. The current density–voltage measurement showed that the photovoltaic parameters of the fabricated dye-sensitized solar cells were improved after introducing Cr-doped TiO$_{2}$ blocking layer at the interface of FTO and Cr-doped TiO$_{2}$ mesoporous layer. The maximum power conversion efficiency increased more than 110 % as a result of inserting the Cr-doped blocking layer. The electrochemical impedance spectroscopy indicated that a more efficient charge transfer process takes place at the interface of the FTO/TiO$_{2}$ due to the enhanced interfacial properties and reduction of charge recombination.
Starting Page	645
Ending Page	651
Page Count	7
File Format	PDF
ISSN	09280707
Journal	Journal of Sol-Gel Science and Technology
Volume Number	81
Issue Number	3
e-ISSN	15734846
Language	English
Publisher	Springer US
Publisher Date	2016-11-15
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dye-sensitized solar cells Cr-doped TiO$_{2}$ Blocking layer Sol–gel method Ceramics, Glass, Composites, Natural Materials Inorganic Chemistry Optical and Electronic Materials Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Chemistry Materials Chemistry Biomaterials Condensed Matter Physics Electronic, Optical and Magnetic Materials

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