Novel Intense Red Emitting Eu3+ Doped CePO4 Nanocrystals for Solid State Lighting Applications. Issue 1 (1st October 2022)

• Record Type: Journal Article
• Authors: Sisira, S; Mani, K P; Punathil, P; Jacob, L A; Baby, B; Biju, P R; Unnikrishnan, N V; Joseph, C
• Is Part Of: IOP conference series. Volume 1263:Issue 1(2022)
• Publication Date: 2022-10-01
• Subjects: Cerium phosphate -- microwave synthesis -- Rietveld refinement -- Europium; Materials science -- Periodicals; 620.1105
• DOI: 10.1088/1757-899X/1263/1/012015
• Languages: English
• ISSNs: 1757-8981

Abstract

Abstract : Novel red emitting europium doped Cerium phosphate nanocrystals were synthesized by microwave assisted sol gel method. X-ray powder diffraction analysis identified the monoclinic structure of synthesized samples. The morphology of the samples were found to beconstructed from elongated spheres and is explained with the help of TEM analysis. Intense orange red emission on excitation with Ce 4+ - O 2- charge transfer band is established by photoluminescence analysis. The effect of annealing on the efficiency of excitation with Ce 4+ - O 2- charge transfer band is demonstrated and is explained in association with the concentration of surface Ce 4+ . Chromaticity coordinates indicate good colour purity of the sample. All the results indicated that microwave assisted method is suitable for synthesizing red emitting CePO4 :Eu phosphors and become a potential candidate for optoelectronic and biological applications.