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Title:Efficient Iron Phosphide Catalyst as a Counter Electrode in Dye-Sensitized Solar Cells : article
Authors:ID Yildiz, Abdullah, Department of Energy Systems Engineering, Faculty of Engineering and Natural Sciences, Ankara Yıldırım Beyazıt University, Ankara, Turkey (Author)
ID Chouki, Takwa, Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, SI-5270, Ajdovščina, Slovenia (Author)
ID Atli, Aycan, Department of Energy Systems Engineering, Faculty of Engineering and Natural Sciences, Ankara Yıldırım Beyazıt University, Ankara, Turkey (Author)
ID Harb, Moussab, KAUST Catalysis Center (KCC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Saudi Arabia (Author)
ID Verbruggen, Sammy W, Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium (Author)
ID Ninakanti, Rajeshreddy, Sustainable Energy, Air & Water Technology (DuEL), Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium (Author)
ID Emin, Saim, Materials Research Laboratory, University of Nova Gorica, Vipavska 11c, SI-5270, Ajdovščina, Slovenia (Author)
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Language:English
Work type:Not categorized
Typology:1.01 - Original Scientific Article
Organization:UNG - University of Nova Gorica
Abstract:Developing an efficient material as a counter electrode (CE) with excellent catalytic activity, intrinsic stability, and low cost is essential for the commercial application of dye-sensitized solar cells (DSSCs). Transition metal phosphides have been demonstrated as outstanding multifunctional catalysts in a broad range of energy conversion technologies. Here, we exploited different phases of iron phosphide as CEs in DSSCs with an I–/I3–-based electrolyte. Solvothermal synthesis using a triphenylphosphine precursor as a phosphorus source allows to grow a Fe2P phase at 300 °C and a FeP phase at 350 °C. The obtained iron phosphide catalysts were coated on fluorine-doped tin oxide substrates and heat-treated at 450 °C under an inert gas atmosphere. The solar-to-current conversion efficiency of the solar cells assembled with the Fe2P material reached 3.96 ± 0.06%, which is comparable to the device assembled with a platinum (Pt) CE. DFT calculations support the experimental observations and explain the fundamental origin behind the improved performance of Fe2P compared to FeP. These results indicate that the Fe2P catalyst exhibits excellent performance along with desired stability to be deployed as an efficient Pt-free alternative in DSSCs.
Keywords:Iron phosphide, catalyst, counter electrode, dye-sensitized solar cell, solvothermal synthesis
Year of publishing:2021
Number of pages:9
Numbering:10, 4
PID:20.500.12556/RUNG-7907 New window
COBISS.SI-ID:140724995 New window
DOI:10.1021/acsaem.1c01628 New window
NUK URN:URN:SI:UNG:REP:JJMXVHKM
Publication date in RUNG:06.02.2023
Views:1221
Downloads:0
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Record is a part of a journal

Title:ACS Applied Energy Materials
Shortened title:ACS Appl. Energy Mater.
Year of publishing:2021

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