Calotropis gigantean-assisted YSO:Pr³⁺ nanophosphors: Near-ultraviolet (NUV) photoluminescence and J-O analysis for solid-state lighting solutions

G. RamakrishnaDepartment of Physics, University College of Science, Tumkur University, Tumkur, India

H. NagabhushanaProf. C.N.R. Rao Centre for Advanced Materials, Tumkur University, Tumkur, India

R. B. BasavarajProf. C.N.R. Rao Centre for Advanced Materials, Tumkur University, Tumkur, India

Ramachandra NaikDepartment of Physics, New Horizon College of Engineering, Bengaluru, IndiaCorrespondence[email protected]

S. C. SharmaDepartment of Mechanical Engineering, Jain University, Jain Group of Institutions, Bengaluru, India

B. Daruka PrasadDepartment of Physics, B.M.S. Institute of Technology, Yelahanka, Bengaluru, India

H. B. PremkumarDepartment of Physics, Dayanand Sagar Academy of Technology and Management, Bengaluru, India

K. S. AnantharajuDepartment of Chemistry, Dayanadasagar College of Engineering, Bengaluru, India

S. C. PrashanthaResearch Center, Department of Science, East West Institute of Technology, Bengaluru, India

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ABSTRACT

Y₂SiO₅:Pr³⁺ (1–9 mol%) nanophosphors were prepared via combustion synthesis using Calotropis gigantea plant latex as fuel. The PXRD patterns of the sample revealed a monoclinic phase with phase group P21/_C n.14. The crystallite size was found to be in the range of 40–48 nm. The effect of Pr³⁺ cations on the luminescence characteristics of YSO nanoparticles was studied. The CIE chromaticity coordinates were located in the yellow region. Hence, the present phosphor finds applications in light-emitting diodes and display devices.

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Acknowledgments

The authors thank VGST, Govt. of Karnataka, India, for providing extended support to carry out this research work.

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Calotropis gigantean-assisted YSO:Pr³⁺ nanophosphors: Near-ultraviolet (NUV) photoluminescence and J-O analysis for solid-state lighting solutions

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Calotropis gigantean-assisted YSO:Pr3+ nanophosphors: Near-ultraviolet (NUV) photoluminescence and J-O analysis for solid-state lighting solutions

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Calotropis gigantean-assisted YSO:Pr³⁺ nanophosphors: Near-ultraviolet (NUV) photoluminescence and J-O analysis for solid-state lighting solutions