Site occupancy and luminescence properties of Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y, Gd)

Dawei Wen; Hideki Kato; Makoto Kobayashi; Shunsuke Yamamoto; Masaya Mitsuishi; Masato Kakihana

doi:10.1039/c7tc00941k

Site occupancy and luminescence properties of Ca₃Ln(AlO)₃(BO₃)₄:Ce³⁺,Tb³⁺,Mn²⁺ (Ln = Y, Gd)

Dawei Wen, Hideki Kato, Makoto Kobayashi, Shunsuke Yamamoto, Masaya Mitsuishi, Masato Kakihana

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

33 Citations (Scopus)

Abstract

In this work, novel single-phase white emitting Ca₃Ln(AlO)₃(BO₃)₄:Ce³⁺,Tb³⁺,Mn²⁺ (Ln = Y and Gd) phosphors were synthesized by a conventional solid-state reaction method. The crystal structure and photoluminescence properties were investigated for the first time. The structure of Ca₃Ln(AlO)₃(BO₃)₄ was formed by AlO₆ octahedral chains interconnected by BO₃ triangles. Along the [001] direction, the Ca/Ln cations fill in the trigonal and hexagonal tunnels. For Ca₃Ln(AlO)₃(BO₃)₄:Ce³⁺ and Ca₃Ln(AlO)₃(BO₃)₄:Mn²⁺, large Ce³⁺ preferred to occupy the smaller coordination site, while small Mn²⁺ occupied the larger coordination site, which was explained by the space hindrance. Due to the cation disorder, the local environment of Ce³⁺ was complicated and the emission band was extremely broad. In Ca₃Ln(AlO)₃(BO₃)₄, the emission color can be tuned from blue to green or red by tuning the Ce³⁺-Tb³⁺ or Ce³⁺-Mn²⁺ concentration based on energy transfer. Thus, the combination of blue, green and red emitting Ce³⁺, Tb³⁺ and Mn²⁺ generated white emission.

Original language	English
Pages (from-to)	4578-4583
Number of pages	6
Journal	Journal of Materials Chemistry C
Volume	5
Issue number	18
DOIs	https://doi.org/10.1039/c7tc00941k
Publication status	Published - 2017

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Chemistry(all)
Materials Chemistry

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title = "Site occupancy and luminescence properties of Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y, Gd)",

abstract = "In this work, novel single-phase white emitting Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y and Gd) phosphors were synthesized by a conventional solid-state reaction method. The crystal structure and photoluminescence properties were investigated for the first time. The structure of Ca3Ln(AlO)3(BO3)4 was formed by AlO6 octahedral chains interconnected by BO3 triangles. Along the [001] direction, the Ca/Ln cations fill in the trigonal and hexagonal tunnels. For Ca3Ln(AlO)3(BO3)4:Ce3+ and Ca3Ln(AlO)3(BO3)4:Mn2+, large Ce3+ preferred to occupy the smaller coordination site, while small Mn2+ occupied the larger coordination site, which was explained by the space hindrance. Due to the cation disorder, the local environment of Ce3+ was complicated and the emission band was extremely broad. In Ca3Ln(AlO)3(BO3)4, the emission color can be tuned from blue to green or red by tuning the Ce3+-Tb3+ or Ce3+-Mn2+ concentration based on energy transfer. Thus, the combination of blue, green and red emitting Ce3+, Tb3+ and Mn2+ generated white emission.",

author = "Dawei Wen and Hideki Kato and Makoto Kobayashi and Shunsuke Yamamoto and Masaya Mitsuishi and Masato Kakihana",

note = "Publisher Copyright: {\textcopyright} 2017 The Royal Society of Chemistry.",

year = "2017",

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T1 - Site occupancy and luminescence properties of Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y, Gd)

AU - Wen, Dawei

AU - Kato, Hideki

AU - Kobayashi, Makoto

AU - Yamamoto, Shunsuke

AU - Mitsuishi, Masaya

AU - Kakihana, Masato

PY - 2017

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N2 - In this work, novel single-phase white emitting Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y and Gd) phosphors were synthesized by a conventional solid-state reaction method. The crystal structure and photoluminescence properties were investigated for the first time. The structure of Ca3Ln(AlO)3(BO3)4 was formed by AlO6 octahedral chains interconnected by BO3 triangles. Along the [001] direction, the Ca/Ln cations fill in the trigonal and hexagonal tunnels. For Ca3Ln(AlO)3(BO3)4:Ce3+ and Ca3Ln(AlO)3(BO3)4:Mn2+, large Ce3+ preferred to occupy the smaller coordination site, while small Mn2+ occupied the larger coordination site, which was explained by the space hindrance. Due to the cation disorder, the local environment of Ce3+ was complicated and the emission band was extremely broad. In Ca3Ln(AlO)3(BO3)4, the emission color can be tuned from blue to green or red by tuning the Ce3+-Tb3+ or Ce3+-Mn2+ concentration based on energy transfer. Thus, the combination of blue, green and red emitting Ce3+, Tb3+ and Mn2+ generated white emission.

AB - In this work, novel single-phase white emitting Ca3Ln(AlO)3(BO3)4:Ce3+,Tb3+,Mn2+ (Ln = Y and Gd) phosphors were synthesized by a conventional solid-state reaction method. The crystal structure and photoluminescence properties were investigated for the first time. The structure of Ca3Ln(AlO)3(BO3)4 was formed by AlO6 octahedral chains interconnected by BO3 triangles. Along the [001] direction, the Ca/Ln cations fill in the trigonal and hexagonal tunnels. For Ca3Ln(AlO)3(BO3)4:Ce3+ and Ca3Ln(AlO)3(BO3)4:Mn2+, large Ce3+ preferred to occupy the smaller coordination site, while small Mn2+ occupied the larger coordination site, which was explained by the space hindrance. Due to the cation disorder, the local environment of Ce3+ was complicated and the emission band was extremely broad. In Ca3Ln(AlO)3(BO3)4, the emission color can be tuned from blue to green or red by tuning the Ce3+-Tb3+ or Ce3+-Mn2+ concentration based on energy transfer. Thus, the combination of blue, green and red emitting Ce3+, Tb3+ and Mn2+ generated white emission.

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Site occupancy and luminescence properties of Ca₃Ln(AlO)₃(BO₃)₄:Ce³⁺,Tb³⁺,Mn²⁺ (Ln = Y, Gd)

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