The Role of Bismuth on the Best Red Light Emitting Nanophosphors
Vini.K1, H.Padma Kumar2, K.M.Nissamudeen3
1Vini.K, Department of Physics, School of Pure and Applied Physics, Kannur University, Payyanur.
2H.Padmakumar, Department of Physics, VTM NSS College, Dhanuvachapuram- Thiruvananthapuram, India.
3K.M.Nissamudeen*, Department of Physics, School of Pure and Applied Physics, Kannur University, Payyanur, India.
Manuscript received on February 06, 2021. | Revised Manuscript received on February 15, 2021. | Manuscript published on March 30, 2021. | PP: 55-59 | Volume-9 Issue-6, March 2021. | Retrieval Number: 100.1/ijrte.F5362039621 | DOI: 10.35940/ijrte.F5362.039621
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Abstract: This paper explains the role of bismuth in the luminescence enhancement of Y2O3:Eu nanophosphors prepared by Combustion method. Bi ions serve as effective sensitizers for visible emitting rare earths for Light Emitting Diodes. From the X-ray diffraction studies, bismuth co-activated nanophosphors exhibit an early crystallization. Bismuth incorporation not only results in the luminescence enhancement at 612 nm, due to 5D0 to 7F2 transition but also reduces the processing temperature for intense photoemission.
Keywords: Bismuth, Doping, Luminescence, Nanophosphor.