Photoluminescence characteristics of novel Sm3+ ions-doped La1.4Al22.6O36 phosphor for n-UV w-LED |
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| Authors: | Ramkrushna M Yerojwar Namdeo S Kokode Chandrahasya M Nandanwar Dipti K Ingole Suchita T Peddiwar |
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| Institution: | 1. Department of Physics, Mohasinbhai Zaweri Mahavidyalaya, Desaiganj (Wadsa), Dist. Gadchiroli, Gondwana University, Gadchiroli, Maharashtra, India;2. Nevjabai Hitkarini College, Bramhapuri, Dist. Chandrapur, Gondwana University, Gadchiroli, Maharashtra, India;3. Department of Chemistry, Mohasinbhai Zaweri Mahavidyalaya, Desaiganj (Wadsa), Dist. Gadchiroli, Gondwana University, Gadchiroli, Maharashtra, India |
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| Abstract: | The combustion procedure was used to synthesize La1.4Al22.6O36:Sm3+ phosphors. The X-ray diffraction (XRD) patterns and morphological and photoluminescence properties were investigated. The XRD patterns consisted of a hexagonal crystal structure. At 405 nm, the maximum excitation intensity was obtained. Following 405 nm excitation, three different emission peaks at 573, 604, and 651 nm were seen. Concentration quenching occurred at 1.5 mol% Sm3+ ions. The Commission Internationale de l'éclairage coordinates for the La1.4Al22.6O36 phosphor with Sm3+ doping were 604 nm (x = 0.644, y = 0.355) falling in the red region. The findings implied that the prepared phosphor may be used to develop w-light-emitting diodes. |
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| Keywords: | combustion method phosphor rare earth doped SEM w-LED XRD |
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