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Spectral downshifting from blue to near infer red region in Ce3+-Nd3+ co-doped YAG phosphor |
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| Affiliation: | 1. Department of 404, School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, Jiangsu 210094, China;2. International Institute for Earth System Science, Nanjing University, Nanjing, Jiangsu 210093, China;1. National Key Laboratory of Tunable Laser Technology, Harbin Institute of Technology, Harbin 150001, China;2. Northeast Forestry University, Harbin 150040, China;1. Provincial Key Laboratory of Laser Polarization and Information Technology, Department of Physics, Qufu Normal University, Qufu 273165, China;2. State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Shanghai 200050, China;3. Institute of Condensed Matter Physics, Linyi University, Linyi 276005, China;4. School of Physics and Optoelectronic Engineering, Ludong University, Yantai 264025, China;1. Thermal Systems Group, ISRO Satellite Centre, Bangalore 560017, India;2. Department of Nanotechnology, Center for Post Graduate Studies, Visvesvaraya Institute of Advance Technology, Visvesvaraya Technological University, Bengaluru Region, Muddenahalli, Chikkaballapur District 562101, India |
| Abstract: | The YAG phosphors co-doped with Ce3+-Nd3+ ions by varying concentration of Nd3+ ion from 1 mol% to 15 mol% were successfully synthesized by conventional solid state reaction method. The phosphors were characterized by powder X-ray powder diffraction (XRD) and surface morphology was studied by scanning electronic microscope (SEM). The photoluminescence (PL) properties were studied in near infra red (NIR) and ultra violet visible (UV–VIS) region. The synthesized phosphors can convert a blue region photon (453 nm) into photons of NIR region (1063 nm). The energy transfer (ET) process was studied by time decay curve and PL spectra. The theoretical value of energy transfer efficiency (ETE) was calculated from time decay luminescence measurement and the maximum efficiency approached up to 82.23%. Hence this phosphor could be prime candidate as a downshifting (DS) luminescent convertor (phosphor) in front of crystalline silicon solar cell (c-Si) panels to reduce thermalization loss in the solar cells. |
| Keywords: | Luminescence Downconversion Inorganic phosphor YAG Energy transfer Solar cells Solid state reaction method |
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