University of Kashan Journal of Nanostructures 2251-7871 13 3 2023 07 01 Synthesis of CeVO4:Dy3+ Nanoparticles as Down Converter and Its Application for Efficiency Enhancement in Dye-Sensitized Solar Cells 806 820 114363 10.22052/JNS.2023.03.021 EN Zohreh Chamanzadeh School of physics, Damghan University, Damghan, Iran Nafiseh Sharifpour School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran Mostafa Zahedifar Physics Department, University of Kashan, Kashan, Ira Mahdi Madani School of Electrical and Computer Engineering, University of Tehran, Tehran, Iran Journal Article 2023 03 13 For the first time, the application of CeVO₄:Dy³⁺ luminescent film as down converter for efficiency enhancement in Dye Sensitized Solar Cell (DSSC) was studied through two ways, inside and outside the DSSC in order to increase the sun light harvesting and achieving increased DSSC efficiency. CeVO₄ nanoparticles (NPs) were synthesized by hydrothermal method at various reaction times and temperatures and then characterized by X-ray diffraction (XRD), photoluminescence (PL), Field-emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM) and UV-Vis absorption spectroscopy. The CeVO₄:Dy³⁺ NPs with different molar ratios of Dy³⁺ ion were synthesized and characterized by PL spectroscopy. Photoelectrodes (PEs) of DSSC were produced by electrophoresis deposition (EPD). A film of these luminescent NPs on the back surface of the PE of DSSC resulted in increased DSSC efficiency by 8.05% compared to that of the cell based on uncoated photoelectrode,while using them as precursor in preparation PE improved the cells efficiency by 5.56%. The improvement can be attributed to the down conversion effect of CeVO₄:Dy³⁺ nanoparticles. https://jns.kashanu.ac.ir/article_114363_5d68f5141ca050882c871fdb0d97703b.pdf