Article ID Journal Published Year Pages File Type
6601462 Electrochemistry Communications 2013 4 Pages PDF
Abstract
In this study, a transparent NiCo2S4 thin film as an effective counter electrode (CE) was incorporated into a Pt-free dye-sensitized solar cell (DSC) for the first time. NiCo2S4 was synthesized via a facile solvothermal method and then subjected to electrophoresis onto a fluorinated tin oxide (FTO) glass substrate. X-ray diffraction, energy dispersive spectrum, and field-emission scanning electron microscope confirmed that the NiCo2S4 nanoparticles were successfully synthesized and deposited onto the FTO substrate, while the electrochemical analyses showed its superior electrocatalytic activity for the I3− reduction compared to the conventional Pt CE. Additionally, the NiCo2S4 CE demonstrated a high transmittance (> 75%) at visible wavelengths. Thus, the DSC assembled with the transparent NiCo2S4 CE achieved a promising photovoltaic conversion efficiency of 6.14% in comparison with that using the Pt CE (6.29%).
Related Topics
Physical Sciences and Engineering Chemical Engineering Chemical Engineering (General)
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