title: Tri-chromatic white-light emission from a single-phase Ca9Sc(PO4)7:Eu(2+),Tb(3+),Mn(2+) phosphor for LED applications.
abstract: A series of single-phase Ca9Sc(PO4)7:Eu(2+),Tb(3+),Mn(2+) phosphors for UV excitations were synthesized by a high-temperature solid-state reaction. Energy transfer from Eu(2+)→ Tb(3+) and Eu(2+)→ Mn(2+) in a Ca9Sc(PO4)7 sample is a feasible route to realize color-tunable emission because Ca9Sc(PO4)7 single-doped Eu(2+)/Tb(3+)/Mn(2+) emit blue, green and red light, respectively. Most of the white light region in the CIE chromaticity diagram has been realized in Ca9Sc(PO4)7:Eu(2+),Tb(3+),Mn(2+) phosphors. Warm white light including the points of (0.337, 0.331), (0.353, 0.355) and (0.358, 0.327) close to day light (0.33, 0.33) with CCT of 5285 K, 4719 K and 4333 K is obtained, respectively.
authors.affiliation: State Key Laboratory of Application of Rare Earth Resources, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China. cyli@ciac.ac.cn zhangsu@ciac.ac.cn.
authors.forename: Lihong
authors.initials: L
authors.lastname: Jiang
authors.forename: Ran
authors.initials: R
authors.lastname: Pang
authors.forename: Da
authors.initials: D
authors.lastname: Li
authors.forename: Wenzhi
authors.initials: W
authors.lastname: Sun
authors.forename: Yonglei
authors.initials: Y
authors.lastname: Jia
authors.forename: Haifeng
authors.initials: H
authors.lastname: Li
authors.forename: Jipeng
authors.initials: J
authors.lastname: Fu
authors.forename: Chengyu
authors.initials: C
authors.lastname: Li
authors.forename: Su
authors.initials: S
authors.lastname: Zhang