title: Spectroscopic properties, energy transfer and structural analysis of Sr2CeO4:M+ and Sr2CeO4:Eu3+, M+ (M+ = Li+, Na+, K+).
abstract: The room-temperature luminescent emission characteristics of Sr(2)CeO(4):M(+) and Sr(2)CeO(4):Eu(3+),M(+) (M(+) = Li(+), Na(+), K(+)) have been investigated under UV excitation. By introducing appropriate alkali metal cations dopants (Li(+), Na(+), K(+)) into the crystalline lattice, not only emission color of the blue-white-emitting Sr(2)CeO(4) doped with low Eu(3+) content can be tuned to green, but also the red emission intensity of Sr(2)CeO(4) doped with high Eu(3+) concentration is strengthened significantly. The relevant mechanisms have been elucidated in detail.
authors.affiliation: State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China.
authors.forename: Li-Li
authors.initials: LL
authors.lastname: Shi
authors.forename: Cheng-Yu
authors.initials: CY
authors.lastname: Li
authors.forename: Qiang
authors.initials: Q
authors.lastname: Su