Publication Type : Journal Article
Publisher : ACS Applied Materials Interfaces
Source : ACS applied materials & interfaces Volume 6 Issue 20 Pages 17661-17667, 2014
Url : https://pubs.acs.org/doi/abs/10.1021/am503888v
Campus : Coimbatore
School : School of Physical Sciences
Center : Center for Industrial Research and Innovation (ACIRI)
Year : 2014
Abstract : A novel approach to produce earth-abundant Cu2FeSnS4 (CFTS) thin film using spray pyrolysis of nontoxic aqueous precursors followed by sulfurization is reported. The CFTS phase formation was confirmed by both Raman spectroscopy and X-ray diffraction techniques. Hall measurements of these films reveal p-type conductivity with good charge carrier density and mobilities appropriate for solar harvesting devices. To the best of our knowledge, this is the first report on the electrical properties of solution-processed Cu2FeSnS4 thin films estimated using Hall measurements. Dye-sensitized solar cells (DSSC) fabricated with CFTS thin film as a photocathode in iodine/iodide electrolyte exhibit good power conversion efficiency, 8.03%, indicating that CFTS would be a promising cheaper alternative to replace Pt as a counter electrode in DSSCs.
Cite this Research Publication : Rajiv Ramanujam Prabhakar, Nguyen Huu Loc, Mulmudi Hemant Kumar, Pablo P Boix, Sun Juan, Rohit Abraham John, Sudip K Batabyal, Lydia Helena Wong, "Facile Water-based Spray Pyrolysis of Earth-Abundant Cu2FeSnS4 Thin Films as an Efficient Counter Electrode in Dye-Sensitized Solar Cells", ACS applied materials & interfaces Volume 6 Issue 20 Pages 17661-17667, 2014