Photoluminescence properties of (Y1-x-yMxEuy)BO3 (M = Al, Zn, and La) phosphors prepared by ultrasonic spray pyrolysis under VUV excitation

J. H. Lee; M. H. Heo; S. J. Kim; S. Nahm; K. Park

doi:10.1016/j.jallcom.2008.05.091

Photoluminescence properties of (Y_1-x-yM_xEu_y)BO₃ (M = Al, Zn, and La) phosphors prepared by ultrasonic spray pyrolysis under VUV excitation

J. H. Lee, M. H. Heo, S. J. Kim, S. Nahm, K. Park

Department of Materials Science and Engineering

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

19 Citations (Scopus)

Abstract

The red-emitting (Y_1-x-yM_xEu_y)BO₃ (M = Al, Zn, and La, 0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16) phosphors were synthesized by ultrasonic spray pyrolysis and their photoluminescence characteristics were studied under VUV excitation. The emission intensity was significantly improved by adding metal (M) dopants because they acted as an intermediator for the transfer of excitation energy from the host lattice to the activator Eu³⁺. The emission intensity of the (Y_0.94-xM_xEu_0.06)BO₃ increased up to x = 0.025 with increasing metal concentration and then decreased with a further increase in metal concentration owing to the concentration quenching effect. The Eu³⁺- and Al³⁺-co-doped (Y_0.975-yAl_0.025Eu_y)BO₃ showed the highest emission intensity at a lower Eu content (y = 0.06), when compared to that (y = 0.13) of singly Eu³⁺-doped (Y_1-yEu_y)BO₃ because of the sensitization effect of Al³⁺ ions.

Original language	English
Pages (from-to)	272-274
Number of pages	3
Journal	Journal of Alloys and Compounds
Volume	473
Issue number	1-2
DOIs	https://doi.org/10.1016/j.jallcom.2008.05.091
Publication status	Published - 2009 Apr 3

Keywords

Ceramics
Inorganic materials
Luminescence
Optical properties

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2008.05.091

Cite this

@article{cb86f5abecf64e15908e0f28378f6239,

title = "Photoluminescence properties of (Y1-x-yMxEuy)BO3 (M = Al, Zn, and La) phosphors prepared by ultrasonic spray pyrolysis under VUV excitation",

abstract = "The red-emitting (Y1-x-yMxEuy)BO3 (M = Al, Zn, and La, 0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16) phosphors were synthesized by ultrasonic spray pyrolysis and their photoluminescence characteristics were studied under VUV excitation. The emission intensity was significantly improved by adding metal (M) dopants because they acted as an intermediator for the transfer of excitation energy from the host lattice to the activator Eu3+. The emission intensity of the (Y0.94-xMxEu0.06)BO3 increased up to x = 0.025 with increasing metal concentration and then decreased with a further increase in metal concentration owing to the concentration quenching effect. The Eu3+- and Al3+-co-doped (Y0.975-yAl0.025Euy)BO3 showed the highest emission intensity at a lower Eu content (y = 0.06), when compared to that (y = 0.13) of singly Eu3+-doped (Y1-yEuy)BO3 because of the sensitization effect of Al3+ ions.",

keywords = "Ceramics, Inorganic materials, Luminescence, Optical properties",

author = "Lee, {J. H.} and Heo, {M. H.} and Kim, {S. J.} and S. Nahm and K. Park",

year = "2009",

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doi = "10.1016/j.jallcom.2008.05.091",

language = "English",

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AU - Lee, J. H.

AU - Heo, M. H.

AU - Kim, S. J.

AU - Nahm, S.

AU - Park, K.

PY - 2009/4/3

Y1 - 2009/4/3

N2 - The red-emitting (Y1-x-yMxEuy)BO3 (M = Al, Zn, and La, 0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16) phosphors were synthesized by ultrasonic spray pyrolysis and their photoluminescence characteristics were studied under VUV excitation. The emission intensity was significantly improved by adding metal (M) dopants because they acted as an intermediator for the transfer of excitation energy from the host lattice to the activator Eu3+. The emission intensity of the (Y0.94-xMxEu0.06)BO3 increased up to x = 0.025 with increasing metal concentration and then decreased with a further increase in metal concentration owing to the concentration quenching effect. The Eu3+- and Al3+-co-doped (Y0.975-yAl0.025Euy)BO3 showed the highest emission intensity at a lower Eu content (y = 0.06), when compared to that (y = 0.13) of singly Eu3+-doped (Y1-yEuy)BO3 because of the sensitization effect of Al3+ ions.

AB - The red-emitting (Y1-x-yMxEuy)BO3 (M = Al, Zn, and La, 0 ≤ x ≤ 0.1, 0.04 ≤ y ≤ 0.16) phosphors were synthesized by ultrasonic spray pyrolysis and their photoluminescence characteristics were studied under VUV excitation. The emission intensity was significantly improved by adding metal (M) dopants because they acted as an intermediator for the transfer of excitation energy from the host lattice to the activator Eu3+. The emission intensity of the (Y0.94-xMxEu0.06)BO3 increased up to x = 0.025 with increasing metal concentration and then decreased with a further increase in metal concentration owing to the concentration quenching effect. The Eu3+- and Al3+-co-doped (Y0.975-yAl0.025Euy)BO3 showed the highest emission intensity at a lower Eu content (y = 0.06), when compared to that (y = 0.13) of singly Eu3+-doped (Y1-yEuy)BO3 because of the sensitization effect of Al3+ ions.

KW - Ceramics

KW - Inorganic materials

KW - Luminescence

KW - Optical properties

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