title: Photoluminescent and decay behaviors of Mn2+ and Ce3+ coactivated MgSiN2 phosphors for use in light-emitting-diode applications.
abstract: We examined the photoluminescent behaviors of MgSiN2:Mn2+ and MgSiN2:Ce3+,Mn2+ phosphors for use in white-light-emitting diodes. The red emission from MgSiN2:Mn2+ phosphors consisted of two Gaussian components, P1 from a single Mn2+ ion and P2 from either Mn2+ pairs or clusters. Decay analysis based on the Yokota and Tanimoto equation identified long decay for P1 and fast decay for P2. Most importantly, Ce3+ codoping enhanced Mn2+ emission intensity; in particular, emission at 460 nm excitations was promoted by the Ce3+ codoping.
authors.affiliation: Department of Materials Science and Metallurgical Engineering, Sunchon National University, Chonnam, Korea.
authors.forename: Chandramouli
authors.initials: C
authors.lastname: Kulshreshtha
authors.forename: Jong Ho
authors.initials: JH
authors.lastname: Kwak
authors.forename: Young-Jo
authors.initials: YJ
authors.lastname: Park
authors.forename: Kee-Sun
authors.initials: KS
authors.lastname: Sohn