Photoluminescence properties of Eu2+-activated Ca2Y2Si2O9 phosphor

Zhijun Zhang; A.C.A. Delsing; P.H.L. Notten; Jingtai Zhao; H.T.J.M. Hintzen

doi:10.1016/j.materresbull.2012.04.005

Photoluminescence properties of Eu2+-activated Ca2Y2Si2O9 phosphor

Zhijun Zhang
, A.C.A. Delsing
, P.H.L. Notten
, Jingtai Zhao
, H.T.J.M. Hintzen

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

16 Citations (Scopus)

Abstract

Eu2+-activated Ca2Y2Si2O9 phosphors with different Eu2+ concentrations have been prepared by a solid-state reaction method at high temperature and their photoluminescence (PL) properties were investigated. Photoluminescence results show that Eu2+-doped Ca2Y2Si2O9 can be efficiently excited by UV–visible light from 300 to 425 nm. Ca2Y2Si2O9: Eu2+ exhibits broad band emission in the wavelength range of 425–700 nm, due to the 4f65d1 ¿ 4f75d0 transition of the Eu2+ ions located at two different sites ((Ca/Y)1 and (Ca/Y)2) in Ca2Y2Si2O9. The effect of the Eu2+ concentration in Ca2Y2Si2O9 on the PL properties was investigated in detail. The results showed that the relative PL intensity reaches a maximum at 1 mol% of Eu2+, and a red-shift of the emission bands from these two different sites was observed with increasing Eu2+ concentration. Also there exists energy transfer between these two Eu2+ sites. The potential applications of Ca2Y2Si2O9: Eu2+ have been pointed out.

Original language	English
Pages (from-to)	2040-2044
Number of pages	5
Journal	Materials Research Bulletin
Volume	47
Issue number	8
DOIs	https://doi.org/10.1016/j.materresbull.2012.04.005
Publication status	Published - 2012

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10.1016/j.materresbull.2012.04.005

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@article{24175bcef2b44fefb5876435d59cb266,

title = "Photoluminescence properties of Eu2+-activated Ca2Y2Si2O9 phosphor",

abstract = "Eu2+-activated Ca2Y2Si2O9 phosphors with different Eu2+ concentrations have been prepared by a solid-state reaction method at high temperature and their photoluminescence (PL) properties were investigated. Photoluminescence results show that Eu2+-doped Ca2Y2Si2O9 can be efficiently excited by UV–visible light from 300 to 425 nm. Ca2Y2Si2O9: Eu2+ exhibits broad band emission in the wavelength range of 425–700 nm, due to the 4f65d1 ¿ 4f75d0 transition of the Eu2+ ions located at two different sites ((Ca/Y)1 and (Ca/Y)2) in Ca2Y2Si2O9. The effect of the Eu2+ concentration in Ca2Y2Si2O9 on the PL properties was investigated in detail. The results showed that the relative PL intensity reaches a maximum at 1 mol\% of Eu2+, and a red-shift of the emission bands from these two different sites was observed with increasing Eu2+ concentration. Also there exists energy transfer between these two Eu2+ sites. The potential applications of Ca2Y2Si2O9: Eu2+ have been pointed out.",

author = "Zhijun Zhang and A.C.A. Delsing and P.H.L. Notten and Jingtai Zhao and H.T.J.M. Hintzen",

year = "2012",

doi = "10.1016/j.materresbull.2012.04.005",

language = "English",

volume = "47",

pages = "2040--2044",

journal = "Materials Research Bulletin",

issn = "0025-5408",

publisher = "Elsevier",

number = "8",

}

TY - JOUR

T1 - Photoluminescence properties of Eu2+-activated Ca2Y2Si2O9 phosphor

AU - Zhang, Zhijun

AU - Delsing, A.C.A.

AU - Notten, P.H.L.

AU - Zhao, Jingtai

AU - Hintzen, H.T.J.M.

PY - 2012

Y1 - 2012

N2 - Eu2+-activated Ca2Y2Si2O9 phosphors with different Eu2+ concentrations have been prepared by a solid-state reaction method at high temperature and their photoluminescence (PL) properties were investigated. Photoluminescence results show that Eu2+-doped Ca2Y2Si2O9 can be efficiently excited by UV–visible light from 300 to 425 nm. Ca2Y2Si2O9: Eu2+ exhibits broad band emission in the wavelength range of 425–700 nm, due to the 4f65d1 ¿ 4f75d0 transition of the Eu2+ ions located at two different sites ((Ca/Y)1 and (Ca/Y)2) in Ca2Y2Si2O9. The effect of the Eu2+ concentration in Ca2Y2Si2O9 on the PL properties was investigated in detail. The results showed that the relative PL intensity reaches a maximum at 1 mol% of Eu2+, and a red-shift of the emission bands from these two different sites was observed with increasing Eu2+ concentration. Also there exists energy transfer between these two Eu2+ sites. The potential applications of Ca2Y2Si2O9: Eu2+ have been pointed out.

AB - Eu2+-activated Ca2Y2Si2O9 phosphors with different Eu2+ concentrations have been prepared by a solid-state reaction method at high temperature and their photoluminescence (PL) properties were investigated. Photoluminescence results show that Eu2+-doped Ca2Y2Si2O9 can be efficiently excited by UV–visible light from 300 to 425 nm. Ca2Y2Si2O9: Eu2+ exhibits broad band emission in the wavelength range of 425–700 nm, due to the 4f65d1 ¿ 4f75d0 transition of the Eu2+ ions located at two different sites ((Ca/Y)1 and (Ca/Y)2) in Ca2Y2Si2O9. The effect of the Eu2+ concentration in Ca2Y2Si2O9 on the PL properties was investigated in detail. The results showed that the relative PL intensity reaches a maximum at 1 mol% of Eu2+, and a red-shift of the emission bands from these two different sites was observed with increasing Eu2+ concentration. Also there exists energy transfer between these two Eu2+ sites. The potential applications of Ca2Y2Si2O9: Eu2+ have been pointed out.

U2 - 10.1016/j.materresbull.2012.04.005

DO - 10.1016/j.materresbull.2012.04.005

M3 - Article

SN - 0025-5408

VL - 47

SP - 2040

EP - 2044

JO - Materials Research Bulletin

JF - Materials Research Bulletin

IS - 8

ER -

Photoluminescence properties of Eu2+-activated Ca2Y2Si2O9 phosphor

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