Luminescence properties of Ca 5(PO 4) 2SiO 4:Eu 2+ green phosphor for near UV-based white LED

Hee Suk Roh; Seyoon Hur; Hee Jo Song; Ik Jae Park; Dong Kyun Yim; Dong Wan Kim; Kug Sun Hong

doi:10.1016/j.matlet.2011.11.088

Luminescence properties of Ca ₅(PO ₄) ₂SiO ₄:Eu ²⁺ green phosphor for near UV-based white LED

Hee Suk Roh, Seyoon Hur, Hee Jo Song, Ik Jae Park, Dong Kyun Yim, Dong Wan Kim, Kug Sun Hong

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

61 Citations (Scopus)

Abstract

A novel green phosphor of Eu ²⁺-doped Ca ₅(PO ₄) ₂SiO ₄ was prepared by a solid-state reaction. The Ca ₅(PO ₄) ₂SiO ₄:Eu ²⁺ phosphor was excited at wavelengths of 220-450 nm, which was suitable for the emission band of near ultraviolet (n-UV) light emitting diode (LED) (350-430 nm). In Ca ₅(PO ₄) ₂SiO ₄:Eu ²⁺ phosphor, there were three distinguishable Eu ²⁺ sites, which resulted in a strong green emission peaking at 530 nm and broad bands up to 700 nm. The effect of the activated Eu ²⁺ concentration on the photoluminescence (PL) emission intensity of the Ca ₅(PO ₄) ₂SiO ₄:Eu ²⁺ was also investigated. Here, a phosphor-converted LED (pc-LED) was fabricated through the integration of an InGaN-based n-UV LED and the Ca ₅(PO ₄) ₂SiO ₄:Eu ²⁺ phosphor. All of these characteristics indicated that this phosphor had a potential application in n-UV-based white LEDs.

Original language	English
Pages (from-to)	37-39
Number of pages	3
Journal	Materials Letters
Volume	70
DOIs	https://doi.org/10.1016/j.matlet.2011.11.088
Publication status	Published - 2012 Mar 1
Externally published	Yes

Keywords

Ca (PO ) SiO
Eu -doped phosphor
Optimum concentration
Photoluminescence
White LED

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2011.11.088

Cite this

@article{58881d6b0d41441daa987ec227682e1e,

title = "Luminescence properties of Ca 5(PO 4) 2SiO 4:Eu 2+ green phosphor for near UV-based white LED",

abstract = "A novel green phosphor of Eu 2+-doped Ca 5(PO 4) 2SiO 4 was prepared by a solid-state reaction. The Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor was excited at wavelengths of 220-450 nm, which was suitable for the emission band of near ultraviolet (n-UV) light emitting diode (LED) (350-430 nm). In Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor, there were three distinguishable Eu 2+ sites, which resulted in a strong green emission peaking at 530 nm and broad bands up to 700 nm. The effect of the activated Eu 2+ concentration on the photoluminescence (PL) emission intensity of the Ca 5(PO 4) 2SiO 4:Eu 2+ was also investigated. Here, a phosphor-converted LED (pc-LED) was fabricated through the integration of an InGaN-based n-UV LED and the Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor. All of these characteristics indicated that this phosphor had a potential application in n-UV-based white LEDs.",

keywords = "Ca (PO ) SiO, Eu -doped phosphor, Optimum concentration, Photoluminescence, White LED",

author = "Roh, {Hee Suk} and Seyoon Hur and Song, {Hee Jo} and Park, {Ik Jae} and Yim, {Dong Kyun} and Kim, {Dong Wan} and Hong, {Kug Sun}",

note = "Funding Information: This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2010-0029617 ) and Samsung LED Co., Ltd .",

year = "2012",

month = mar,

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doi = "10.1016/j.matlet.2011.11.088",

language = "English",

volume = "70",

pages = "37--39",

journal = "Materials Letters",

issn = "0167-577X",

publisher = "Elsevier",

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TY - JOUR

T1 - Luminescence properties of Ca 5(PO 4) 2SiO 4:Eu 2+ green phosphor for near UV-based white LED

AU - Roh, Hee Suk

AU - Hur, Seyoon

AU - Song, Hee Jo

AU - Park, Ik Jae

AU - Yim, Dong Kyun

AU - Kim, Dong Wan

AU - Hong, Kug Sun

N1 - Funding Information: This work was supported by the Priority Research Centers Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology ( 2010-0029617 ) and Samsung LED Co., Ltd .

PY - 2012/3/1

Y1 - 2012/3/1

N2 - A novel green phosphor of Eu 2+-doped Ca 5(PO 4) 2SiO 4 was prepared by a solid-state reaction. The Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor was excited at wavelengths of 220-450 nm, which was suitable for the emission band of near ultraviolet (n-UV) light emitting diode (LED) (350-430 nm). In Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor, there were three distinguishable Eu 2+ sites, which resulted in a strong green emission peaking at 530 nm and broad bands up to 700 nm. The effect of the activated Eu 2+ concentration on the photoluminescence (PL) emission intensity of the Ca 5(PO 4) 2SiO 4:Eu 2+ was also investigated. Here, a phosphor-converted LED (pc-LED) was fabricated through the integration of an InGaN-based n-UV LED and the Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor. All of these characteristics indicated that this phosphor had a potential application in n-UV-based white LEDs.

AB - A novel green phosphor of Eu 2+-doped Ca 5(PO 4) 2SiO 4 was prepared by a solid-state reaction. The Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor was excited at wavelengths of 220-450 nm, which was suitable for the emission band of near ultraviolet (n-UV) light emitting diode (LED) (350-430 nm). In Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor, there were three distinguishable Eu 2+ sites, which resulted in a strong green emission peaking at 530 nm and broad bands up to 700 nm. The effect of the activated Eu 2+ concentration on the photoluminescence (PL) emission intensity of the Ca 5(PO 4) 2SiO 4:Eu 2+ was also investigated. Here, a phosphor-converted LED (pc-LED) was fabricated through the integration of an InGaN-based n-UV LED and the Ca 5(PO 4) 2SiO 4:Eu 2+ phosphor. All of these characteristics indicated that this phosphor had a potential application in n-UV-based white LEDs.

KW - Ca (PO ) SiO

KW - Eu -doped phosphor

KW - Optimum concentration

KW - Photoluminescence

KW - White LED

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