Abstract
Dye-sensitized solar cells (DSCs) have become one of the most promising photovoltaic devices due to their low cost, simple fabrication, and relatively high powerconversion efficiency.To reduce the cost of DSCs, it is necessary to find out high-efficiency and low-cost alternatives to replace the conventional noble Pt counter electrode (CE). Among inorganic compounds, transition metal sulfides, such as CoS, NiS,MoS2 and WS2, have attracted extensive attention dueto their excellent electrocatalytic activity for I3 − reduction. In this study, NiCo2S4 was firstly synthesized via a facile solvothermal method and then subjected to electrophoresis onto a fluorinated tin oxide (FTO) glass substrate. The resultant NiCo2S4 CE demonstrated both high transmittance (>75%) at visible wavelengths and improved electrocatalytic activity, while the DSC based on the transparent CE still achieved an impassive cell efficiency of 6.14%.Moreover, the NiCo2S4 films deposited by the facile electrophoretic deposition has the following benefits,including low temperature, high depositionrate, controllable thickness, great uniformity, scalable production, and without using any organic binders.Therefore, the DSC assembled withthe transparent NiCo2S4 CE could be a promising candidate as Pt-free CE for DSCs application.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.