Enhancement of photoluminescent properties of green-emitting (Ba 2-xSrx)SiO4 silicate phosphor using Eu 2O3@B2O3 core-shells for white LED applications

Y. H. Song; E. J. Chung; S. H. Song; M. K. Jung; K. Senthil; T. Masaki; D. H. Yoon

doi:10.1016/j.matlet.2013.07.093

Enhancement of photoluminescent properties of green-emitting (Ba _2-xSr_x)SiO₄ silicate phosphor using Eu ₂O₃@B₂O₃ core-shells for white LED applications

Y. H. Song
, E. J. Chung
, S. H. Song
, M. K. Jung
, K. Senthil
, T. Masaki
, D. H. Yoon

Department of Advanced Materials Science and Engineering

Sungkyunkwan University
Hyosung Group

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

13 Scopus citations

Abstract

A novel method to enhance the (Ba_2-xSr_x)SiO ₄ phosphors used for white LEDs was developed by using Eu ₂O₃@B₂O₃ core-shells as an activator. This phosphor using Eu₂O₃@B₂O ₃ core-shell showed twice as emission intensity as phosphor doped with Eu²⁺ alone. The synthesized green-emitting phosphors using carbon sheet showed much better crystallization as well as higher emission intensity. The emission spectra showed a typically broad green emission band attributed to the 5d→4f transition of Eu²⁺ ions under excitation at 420 nm. This phosphor is expected to be suitable to a wide range of quickly growing applications, and could be a promising phosphor for white LEDs.

Original language	English
Pages (from-to)	34-37
Number of pages	4
Journal	Materials Letters
Volume	110
DOIs	https://doi.org/10.1016/j.matlet.2013.07.093
State	Published - 2013

Keywords

EuO@B O core-shell
Silicate phosphor
White LEDs

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10.1016/j.matlet.2013.07.093

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title = "Enhancement of photoluminescent properties of green-emitting (Ba 2-xSrx)SiO4 silicate phosphor using Eu 2O3@B2O3 core-shells for white LED applications",

abstract = "A novel method to enhance the (Ba2-xSrx)SiO 4 phosphors used for white LEDs was developed by using Eu 2O3@B2O3 core-shells as an activator. This phosphor using Eu2O3@B2O 3 core-shell showed twice as emission intensity as phosphor doped with Eu2+ alone. The synthesized green-emitting phosphors using carbon sheet showed much better crystallization as well as higher emission intensity. The emission spectra showed a typically broad green emission band attributed to the 5d→4f transition of Eu2+ ions under excitation at 420 nm. This phosphor is expected to be suitable to a wide range of quickly growing applications, and could be a promising phosphor for white LEDs.",

keywords = "EuO@B O core-shell, Silicate phosphor, White LEDs",

author = "Song, \{Y. H.\} and Chung, \{E. J.\} and Song, \{S. H.\} and Jung, \{M. K.\} and K. Senthil and T. Masaki and Yoon, \{D. H.\}",

year = "2013",

doi = "10.1016/j.matlet.2013.07.093",

language = "English",

volume = "110",

pages = "34--37",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Enhancement of photoluminescent properties of green-emitting (Ba 2-xSrx)SiO4 silicate phosphor using Eu 2O3@B2O3 core-shells for white LED applications

AU - Song, Y. H.

AU - Chung, E. J.

AU - Song, S. H.

AU - Jung, M. K.

AU - Senthil, K.

AU - Masaki, T.

AU - Yoon, D. H.

PY - 2013

Y1 - 2013

N2 - A novel method to enhance the (Ba2-xSrx)SiO 4 phosphors used for white LEDs was developed by using Eu 2O3@B2O3 core-shells as an activator. This phosphor using Eu2O3@B2O 3 core-shell showed twice as emission intensity as phosphor doped with Eu2+ alone. The synthesized green-emitting phosphors using carbon sheet showed much better crystallization as well as higher emission intensity. The emission spectra showed a typically broad green emission band attributed to the 5d→4f transition of Eu2+ ions under excitation at 420 nm. This phosphor is expected to be suitable to a wide range of quickly growing applications, and could be a promising phosphor for white LEDs.

AB - A novel method to enhance the (Ba2-xSrx)SiO 4 phosphors used for white LEDs was developed by using Eu 2O3@B2O3 core-shells as an activator. This phosphor using Eu2O3@B2O 3 core-shell showed twice as emission intensity as phosphor doped with Eu2+ alone. The synthesized green-emitting phosphors using carbon sheet showed much better crystallization as well as higher emission intensity. The emission spectra showed a typically broad green emission band attributed to the 5d→4f transition of Eu2+ ions under excitation at 420 nm. This phosphor is expected to be suitable to a wide range of quickly growing applications, and could be a promising phosphor for white LEDs.

KW - EuO@B O core-shell

KW - Silicate phosphor

KW - White LEDs

UR - https://www.scopus.com/pages/publications/84882999101

U2 - 10.1016/j.matlet.2013.07.093

DO - 10.1016/j.matlet.2013.07.093

M3 - Article

AN - SCOPUS:84882999101

SN - 0167-577X

VL - 110

SP - 34

EP - 37

JO - Materials Letters

JF - Materials Letters

ER -

Enhancement of photoluminescent properties of green-emitting (Ba _2-xSr_x)SiO₄ silicate phosphor using Eu ₂O₃@B₂O₃ core-shells for white LED applications

Abstract

Keywords

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