Rare-earth free broadband Ca3Mg3P4O16:Mn2+ red phosphor: Synthesis and luminescence properties

Rare-earth-free red-emitting Ca3Mg3P4O16:Mn2+ (CMPO:Mn2+) phosphor is synthesized by high temperature solid-state reaction method in air. The crystal structures and luminescence properties are investigated. Broad emission band peaking at ~ 625nm of CMPO:Mn2+ phosphor with excitation 410nm is observe...

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Bibliographic Details
Published inJournal of luminescence Vol. 194; pp. 542 - 546
Main Authors Cao, Renping, Shi, Zhihui, Quan, Guanjun, Hu, Zuofu, Zheng, Guotai, Chen, Ting, Guo, Siling, Ao, Hui
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.02.2018
Subjects
Mn2+ ion
Phosphate
Phosphor
Red-emitting
Red-emitting
Mn2+ ion
Phosphate
Phosphor
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Summary:Rare-earth-free red-emitting Ca3Mg3P4O16:Mn2+ (CMPO:Mn2+) phosphor is synthesized by high temperature solid-state reaction method in air. The crystal structures and luminescence properties are investigated. Broad emission band peaking at ~ 625nm of CMPO:Mn2+ phosphor with excitation 410nm is observed in the range of 510 − 790nm due to the 4T1(G) → 6A1 transition of the Mn2+ ion. The full width at half-maximum is ~ 120nm. Excitation bands are assigned to the [6A1 → 4E(4D), 4T2(D), [4A1(G), 4E(4G), and 4T1(G)] transitions, respectively. The optimal Mn2+ ion concentration in CMPO:Mn2+ phosphor is ~ 5mol%. The lifetime of CMPO:0.05Mn2+ phosphor is ~ 5.75ms. The luminous mechanism of Mn2+ ion in CMPO:Mn2+ phosphor is explained by Tanabe-Sugano diagram and the simple energy level diagram of Mn2+ ion. The paper content is helpful for the research of novel Mn2+-doped materials.
ISSN:0022-2313
1872-7883
DOI:10.1016/j.jlumin.2017.10.079