Abstract
To enhance the spectral response of solar cells, an experimental study on LaPO4:0.01Ce3+/xNd3+ (x = 0, 2, 4 mol%) was carried out, where structural and morphological properties of the prepared samples were well characterized by the means of X-ray diffraction, Fourier transform infrared spectroscopy, and scanning electronic microscope. Additionally, the photoluminescence behavior of phosphors in ultraviolet–visible (UV–VIS) and Near-infrared (NIR) regions were investigated to confirm the energy transfer (ET) from Ce3+ to Nd3+. Moreover, the quantum efficiency of Ce3+/Nd3+-co-doped samples was estimated as high as ~ 172% and the possible ET process was described. Accordingly, the LaPO4:Ce3+/Nd3+ phosphors can convert the UV light (275 nm) into NIR photons (approx. 1059 nm) through the possible two-pathway energy transfer processes from Ce3+ sensitizer ions to Nd3+ activators. Obtained NIR down-conversion emissions are suitable for improving the conversion efficiency of c-Si solar cells.
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The datasets generated during and/or analyzed during the current study are available from the corresponding author on reasonable request.
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Acknowledgements
O.A. acknowledges the Moroccan National Center for Scientific and Technical Research for excellence scholarship number 1USMS2018. M.Y.M. acknowledges the Laboratory Holding Division of CNESTEN (Morocco) for the experimental support. NIMP authors acknowledge the financial support from the Romanian Ministry of Research and Innovation in the framework of Core Program PN19-03 (Contract No. 21 N/08.02.2019) and POC-G project MAT2IT (Contract 54/2016, SMIS code 105726, Intermediary Body-Romanian Ministry of Research and Innovation). Mr. D. Avram from the National Institute for Laser, Plasma, and Radiation Physics (Romania) is gratefully acknowledged for the PL analysis in the NIR range.
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OAM contributed to methodology, data analysis, investigation, writing and preparation of the original draft, and writing, reviewing, and editing of the manuscript. LO, MYM, FN, and MS contributed to funding acquisition, project administration, data acquisition, investigation, supervision, methodology, corrections, and suggestions, and writing, reviewing, and editing of the manuscript. MT, MF, and SN contributed to data acquisition, investigation, corrections, and suggestions. All the authors read and approved the final manuscript.
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AitMellal, O., Oufni, L., Messous, M.Y. et al. Structural properties and near-infrared light from Ce3+/Nd3+-co-doped LaPO4 nanophosphors for solar cell applications. J Mater Sci: Mater Electron 33, 4197–4210 (2022). https://doi.org/10.1007/s10854-021-07615-6
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DOI: https://doi.org/10.1007/s10854-021-07615-6