title: Persistent luminescence of CaMgSi2O6:Eu(2+),Dy(3+) and CaMgSi2O6:Eu(2+),Ce(3+) phosphors prepared using the solid-state reaction method.
abstract: CaMgSi2O6:Eu(2+),Dy(3+) and CaMgSi2O6:Eu(2+),Ce(3+) phosphors were synthesized using the solid-state reaction method. X-Ray diffraction (XRD) and photoluminescence (PL) analyses were used to characterize the phosphors. The XRD results revealed that the synthesized CaMgSi2O6:Eu(2+),Dy(3+) and CaMgSi2O6:Eu(2+),Ce(3+) phosphors were crystalline and are assigned to the monoclinic structure with a space group C2/c. The calculated crystal sizes of CaMgSi2O6:Eu(2+),Dy(3+) and CaMgSi2O6:Eu(2+),Ce(3+) phosphors with a main (221) diffraction peak were 44.87 and 53.51 nm, respectively. Energy-dispersive X-ray spectroscopy (EDX) confirmed the proper preparation of the sample. The PL emission spectra of CaMgSi2O6:Eu(2+),Dy(3+) and CaMgSi2O6:Eu(2+),Ce(3+) phosphors have a broad band peak at 444.5 and 466 nm, respectively, which is due to electronic transition from 4f(6) 5d(1) to 4f(7). The afterglow results indicate that the CaMgSi2O6:Eu(2+),Dy(3+) phosphor has better persistence luminescence than the CaMgSi2O6:Eu(2+),Ce(3+) phosphor.
authors.affiliation: School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University Raipur, India.
authors.forename: P
authors.initials: P
authors.lastname: Chandrakar
authors.affiliation: School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University Raipur, India.
authors.forename: R N
authors.initials: RN
authors.lastname: Baghel
authors.affiliation: School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University Raipur, India.
authors.forename: D P
authors.initials: DP
authors.lastname: Bisen
authors.affiliation: School of Studies in Physics and Astrophysics, Pt. Ravishankar Shukla University Raipur, India.
authors.forename: B P
authors.initials: BP
authors.lastname: Chandra
mesh_terms: D002118:Calcium / Q000737:chemistry; D002563:Cerium / Q000737:chemistry; D004419:Dysprosium / Q000737:chemistry; D005063:Europium / Q000737:chemistry; D049449:Luminescence; D008274:Magnesium / Q000737:chemistry; D010100:Oxygen / Q000737:chemistry; D055668:Photochemical Processes; D012825:Silicon / Q000737:chemistry; D013052:Spectrometry, X-Ray Emission; D014961:X-Ray Diffraction
chemical_list: D004419:Dysprosium; D002563:Cerium; D005063:Europium; D008274:Magnesium; D010100:Oxygen; D002118:Calcium; D012825:Silicon
keywords: CaMgSi2O6:Eu2+,Ce3+ phosphors; CaMgSi2O6:Eu2+,Dy3+; XRD; afterglow properties; photoluminescence