Synthesis and Photoluminescence Studies of an Orange Red Color Emitting novel CaAl2O4: Sm3+ nanophosphor for LED Applications. (2017)

• Record Type: Journal Article
• Authors: Shashikala, B.S.; Premkumar, H.B.; Darshan, G.P.; Nagabhushana, H.; Sharma, S.C.; Prashantha, S.C.; Nagaswarupa, H.P.
• Is Part Of: Materials today. Volume 4:Number 11(2017)Part 3
• Page Start: 11820
• Page End: 11826
• Publication Date: 2017
• Subjects: Combustion synthesis -- Nanophosphor -- Light emitting diodes -- Photoluminescence; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2017.09.100
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: A novel CaAl2 O4 : Sm 3+ (1 – 9 mol%) was synthesized by solution combustion method by using ODH as a fuel. The final product was well characterized by PXRD, DRS, SEM, TEM and PL. The PXRD profile of CaAl2 O4 :Sm 3+ well matched with JCPDS NO.172155. The average crystallite sizes are found to be in the range 20 - 40 nm. From Diffuse Reflectance Spectra, the energy gap of the samples were calculated and found to be∼ 2.6 - 3.1 eV. The PL emission peaks centered at∼ 564, 601 and 647