title: Highly efficient downconversion white light in Tm³⁺/Tb³⁺/Mn²⁺ tridoped P₂O₅-Li₂O-Sb₂O₃ glass.
abstract: Tm³⁺/Tb³⁺/Mn²⁺ tridoped phosphate glasses containing different Mn²⁺ ion concentrations were synthesized to explore new white-light-emitting material. Under 355 nm excitation, the CIE coordinates (x=0.328, y=0.337) of the Mn0.10 sample doped with 0.10 wt. % Mn²⁺ are close to the standard equal energy white-light illumination (x=0.333, y=0.333). The quantum efficiency of the Mn0.01 sample is very high (~72.32%). The concentration of Mn²⁺ ions has a great effect on the emission color, and the energy transitions from Tm³⁺, Tb³⁺ to Mn²⁺ become more intense with an increase in Mn2+ion concentrations. The phenomenon is reasonably interpreted based on the analysis of the luminescence lifetime.
authors.affiliation: The Key Laboratory of Weak Light Nonlinear Photonics, Ministry of Education, Nankai University, Tianjin 300457, China.
authors.forename: Chengguo
authors.initials: C
authors.lastname: Ming
authors.forename: Feng
authors.initials: F
authors.lastname: Song
authors.forename: Chengren
authors.initials: C
authors.lastname: Li
authors.forename: Yin
authors.initials: Y
authors.lastname: Yu
authors.forename: Gong
authors.initials: G
authors.lastname: Zhang
authors.forename: Hua
authors.initials: H
authors.lastname: Yu
authors.forename: Tongqing
authors.initials: T
authors.lastname: Sun
authors.forename: Jianguo
authors.initials: J
authors.lastname: Tian