Effect of site occupancies on deep-red emission from Eu2+-activated Ca22-SiO4 phosphor

Hiroki Kuwahara; Yasushi Sato; Hideki Kato; Makoto Kobayashi; Takaki Masaki; Masato Kakihana

doi:10.1246/cl.151145

Effect of site occupancies on deep-red emission from Eu²⁺-activated Ca2₂-SiO₄ phosphor

Hiroki Kuwahara, Yasushi Sato, Hideki Kato, Makoto Kobayashi, Takaki Masaki, Masato Kakihana

IMRAM - Division of Inorganic Material Research

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

6 Citations (Scopus)

Abstract

Calcium silicate cosubstituted with Sr²⁺ and Eu²⁺ was studied in order to examine the relationship between emission characteristics and Eu²⁺ occupancy at two types of Ca sites (Ca(1n) and Ca(2n)). The results clearly indicate that red emission of the Ca2₂-SiO₄:Eu²⁺ phosphor is caused by Eu²⁺ substitution at the Ca(2n) site. In addition, red shift in emission of Eu(2n) occurs when large amounts of Eu were substituted.

Original language	English
Pages (from-to)	321-323
Number of pages	3
Journal	Chemistry Letters
Volume	45
Issue number	3
DOIs	https://doi.org/10.1246/cl.151145
Publication status	Published - 2016

Keywords

Deep-red emission
Light-emitting diode (LED)
Site occupancy

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10.1246/cl.151145

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title = "Effect of site occupancies on deep-red emission from Eu2+-activated Ca22-SiO4 phosphor",

abstract = "Calcium silicate cosubstituted with Sr2+ and Eu2+ was studied in order to examine the relationship between emission characteristics and Eu2+ occupancy at two types of Ca sites (Ca(1n) and Ca(2n)). The results clearly indicate that red emission of the Ca22-SiO4:Eu2+ phosphor is caused by Eu2+ substitution at the Ca(2n) site. In addition, red shift in emission of Eu(2n) occurs when large amounts of Eu were substituted.",

keywords = "Deep-red emission, Light-emitting diode (LED), Site occupancy",

author = "Hiroki Kuwahara and Yasushi Sato and Hideki Kato and Makoto Kobayashi and Takaki Masaki and Masato Kakihana",

note = "Publisher Copyright: {\textcopyright} 2016 The Chemical Society of Japan.",

year = "2016",

doi = "10.1246/cl.151145",

language = "English",

volume = "45",

pages = "321--323",

journal = "Chemistry Letters",

issn = "0366-7022",

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TY - JOUR

T1 - Effect of site occupancies on deep-red emission from Eu2+-activated Ca22-SiO4 phosphor

AU - Kuwahara, Hiroki

AU - Sato, Yasushi

AU - Kato, Hideki

AU - Kobayashi, Makoto

AU - Masaki, Takaki

AU - Kakihana, Masato

PY - 2016

Y1 - 2016

N2 - Calcium silicate cosubstituted with Sr2+ and Eu2+ was studied in order to examine the relationship between emission characteristics and Eu2+ occupancy at two types of Ca sites (Ca(1n) and Ca(2n)). The results clearly indicate that red emission of the Ca22-SiO4:Eu2+ phosphor is caused by Eu2+ substitution at the Ca(2n) site. In addition, red shift in emission of Eu(2n) occurs when large amounts of Eu were substituted.

AB - Calcium silicate cosubstituted with Sr2+ and Eu2+ was studied in order to examine the relationship between emission characteristics and Eu2+ occupancy at two types of Ca sites (Ca(1n) and Ca(2n)). The results clearly indicate that red emission of the Ca22-SiO4:Eu2+ phosphor is caused by Eu2+ substitution at the Ca(2n) site. In addition, red shift in emission of Eu(2n) occurs when large amounts of Eu were substituted.

KW - Deep-red emission

KW - Light-emitting diode (LED)

KW - Site occupancy

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DO - 10.1246/cl.151145

M3 - Article

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SN - 0366-7022

VL - 45

SP - 321

EP - 323

JO - Chemistry Letters

JF - Chemistry Letters

IS - 3

ER -

Effect of site occupancies on deep-red emission from Eu²⁺-activated Ca2₂-SiO₄ phosphor

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Keywords

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