title: Luminescent properties of Ca3SiO4Cl2 co-doped with Ce(3+) and Eu(2+) for near-ultraviolet light-emitting diodes.
abstract: Ca3SiO4Cl2 co-doped with Ce(3+),Eu(2+) was prepared by high temperature reaction. The structure, luminescent properties and the energy transfer process of Ca3SiO4Cl2:Ce(3+),Eu(2+) were investigated. Eu(2+) ions can give enhanced green emission through Ce(3+) → Eu(2+) energy transfer in these phosphors. The green phosphor Ca2.9775SiO4Cl2:0.0045Ce(3+),0.018Eu(2+) showed intense green emission with broader excitation in the near-ultraviolet light range. A green light-emitting diode (LED) based on this phosphor was made, and bright green light from this green LED could be observed by the naked eye under 20 mA current excitation. Hence it is considered to be a good candidate for the green component of a three-band white LED.
authors.affiliation: College of Chemistry and Chemical Engineering, Neijiang Normal University, Neijiang, Sichuan, 641112, People's Republic of China.
authors.forename: Wangqing
authors.initials: W
authors.lastname: Shen
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Yiwen
authors.initials: Y
authors.lastname: Zhu
authors.affiliation: Engineering Research Center of Biopolymer Functional Materials of Yunnan, School of Chemistry and Biotechnology, Yunnan Minzu University, Kunming, Yunnan, 650500, People's Republic of China.
authors.forename: Zhengliang
authors.initials: Z
authors.lastname: Wang
mesh_terms: D002563:Cerium / Q000737:chemistry*; D004735:Energy Transfer; D005063:Europium / Q000737:chemistry*; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D014466:Ultraviolet Rays
chemical_list: D049408:Luminescent Agents; D002563:Cerium; D005063:Europium
keywords: Ca3SiO4Cl2; light-emitting diodes; luminescent properties; phosphor