Luminescent properties and energy transfer of Eu2+/Mn2+ codoped Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 phosphors

Kevin Bertschinger; Hyemin Park; Ha Jun Kim; Yongseon Kim; Won Bin Im; Sungho Choi; Jae Yong Suh

doi:10.1016/j.jlumin.2019.116958

Luminescent properties and energy transfer of Eu²⁺/Mn²⁺ codoped Na(Sr,Ba)PO₄ and Ba₂Mg(BO₃)₂ phosphors

Kevin Bertschinger, Hyemin Park, Ha Jun Kim, Yongseon Kim, Won Bin Im, Sungho Choi, Jae Yong Suh

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

Two series of the phosphors Na(Sr,Ba)PO₄ and Ba₂Mg(BO₃)₂ codoped with different concentrations of Eu²⁺ and Mn²⁺ were synthesized using a solid-state reaction method. The energy transfer between Eu²⁺ and Mn²⁺ in both host crystals was investigated by steady-state and time-resolved photoluminescence measurements. For Na(Sr,Ba)PO₄, Eu²⁺ has an emission centered at 460 nm which overlaps with multiple excitation transition of Mn²⁺. In contrast, for Ba₂Mg(BO₃)₂, Eu²⁺ emission is red-shifted to 612 nm, which causes a single spectral overlap between Eu²⁺ and Mn²⁺ energy levels. As a result, the energy transfer efficiency is improved between Eu²⁺ and Mn²⁺ in Ba₂Mg(BO₃)₂ with a maximum energy transfer efficiency of 91% compared to that in Na(Sr,Ba)PO₄ with that of 57%.

Original language	English
Article number	116958
Journal	Journal of Luminescence
Volume	220
DOIs	https://doi.org/10.1016/j.jlumin.2019.116958
State	Published - Apr 2020

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© 2019 Elsevier B.V.

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@article{770b7652a8da4b2ea8c4f4ae3425ef94,

title = "Luminescent properties and energy transfer of Eu2+/Mn2+ codoped Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 phosphors",

abstract = "Two series of the phosphors Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 codoped with different concentrations of Eu2+ and Mn2+ were synthesized using a solid-state reaction method. The energy transfer between Eu2+ and Mn2+ in both host crystals was investigated by steady-state and time-resolved photoluminescence measurements. For Na(Sr,Ba)PO4, Eu2+ has an emission centered at 460 nm which overlaps with multiple excitation transition of Mn2+. In contrast, for Ba2Mg(BO3)2, Eu2+ emission is red-shifted to 612 nm, which causes a single spectral overlap between Eu2+ and Mn2+ energy levels. As a result, the energy transfer efficiency is improved between Eu2+ and Mn2+ in Ba2Mg(BO3)2 with a maximum energy transfer efficiency of 91% compared to that in Na(Sr,Ba)PO4 with that of 57%.",

author = "Kevin Bertschinger and Hyemin Park and Kim, {Ha Jun} and Yongseon Kim and Im, {Won Bin} and Sungho Choi and Suh, {Jae Yong}",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2020",

month = apr,

doi = "10.1016/j.jlumin.2019.116958",

language = "English",

volume = "220",

journal = "Journal of Luminescence",

issn = "0022-2313",

publisher = "Elsevier B.V.",

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TY - JOUR

T1 - Luminescent properties and energy transfer of Eu2+/Mn2+ codoped Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 phosphors

AU - Bertschinger, Kevin

AU - Park, Hyemin

AU - Kim, Ha Jun

AU - Kim, Yongseon

AU - Im, Won Bin

AU - Choi, Sungho

AU - Suh, Jae Yong

PY - 2020/4

Y1 - 2020/4

N2 - Two series of the phosphors Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 codoped with different concentrations of Eu2+ and Mn2+ were synthesized using a solid-state reaction method. The energy transfer between Eu2+ and Mn2+ in both host crystals was investigated by steady-state and time-resolved photoluminescence measurements. For Na(Sr,Ba)PO4, Eu2+ has an emission centered at 460 nm which overlaps with multiple excitation transition of Mn2+. In contrast, for Ba2Mg(BO3)2, Eu2+ emission is red-shifted to 612 nm, which causes a single spectral overlap between Eu2+ and Mn2+ energy levels. As a result, the energy transfer efficiency is improved between Eu2+ and Mn2+ in Ba2Mg(BO3)2 with a maximum energy transfer efficiency of 91% compared to that in Na(Sr,Ba)PO4 with that of 57%.

AB - Two series of the phosphors Na(Sr,Ba)PO4 and Ba2Mg(BO3)2 codoped with different concentrations of Eu2+ and Mn2+ were synthesized using a solid-state reaction method. The energy transfer between Eu2+ and Mn2+ in both host crystals was investigated by steady-state and time-resolved photoluminescence measurements. For Na(Sr,Ba)PO4, Eu2+ has an emission centered at 460 nm which overlaps with multiple excitation transition of Mn2+. In contrast, for Ba2Mg(BO3)2, Eu2+ emission is red-shifted to 612 nm, which causes a single spectral overlap between Eu2+ and Mn2+ energy levels. As a result, the energy transfer efficiency is improved between Eu2+ and Mn2+ in Ba2Mg(BO3)2 with a maximum energy transfer efficiency of 91% compared to that in Na(Sr,Ba)PO4 with that of 57%.

UR - http://www.scopus.com/inward/record.url?scp=85076432760&partnerID=8YFLogxK

U2 - 10.1016/j.jlumin.2019.116958

DO - 10.1016/j.jlumin.2019.116958

M3 - Article

AN - SCOPUS:85076432760

SN - 0022-2313

VL - 220

JO - Journal of Luminescence

JF - Journal of Luminescence

M1 - 116958

ER -

Luminescent properties and energy transfer of Eu²⁺/Mn²⁺ codoped Na(Sr,Ba)PO₄ and Ba₂Mg(BO₃)₂ phosphors

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