(Ba,Sr)Y2Si2Al2O2N 5:Eu2+: A novel near-ultraviolet converting green phosphor for white light-emitting diodes

Wei Ren Liu; Chiao Wen Yeh; Chien Hao Huang; Chun Che Lin; Yi Chen Chiu; Yao Tsung Yeh; Ru Shi Liu

doi:10.1039/c0jm03573d

(Ba,Sr)Y₂Si₂Al₂O₂N ₅:Eu²⁺: A novel near-ultraviolet converting green phosphor for white light-emitting diodes

Wei Ren Liu
, Chiao Wen Yeh
, Chien Hao Huang
, Chun Che Lin
, Yi Chen Chiu
, Yao Tsung Yeh
, Ru Shi Liu

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

103 Citations (Scopus)

Abstract

A highly intense green-emitting phosphor BaY₂Si ₂Al₂O₂N₅:Eu²⁺ (BYN:Eu²⁺) peaking at 511 nm was synthesized by a solid state reaction. The structure refinement, luminescence properties of BYN:Eu ²⁺ phosphors as well as their thermal quenching and the fabrication of white-light-emitting diodes (W-LEDs) were firstly investigated. By partially substituting Ba by Sr, namely (Ba,Sr)Y₂Si₂Al ₂O₂N₅:Eu²⁺ (BSYN:Eu²⁺), the emission peak was shifted to 565 nm, giving a yellow-orange color, due to the splitting of the 5d energy level. By utilizing a mixture of blue-emitting BaMgAl₁₀O₁₇:Eu²⁺, green-emitting BYN:Eu ²⁺ and red-emitting CaAlSiN₃:Eu²⁺ phosphors as light converters, an intense white GaN-based n-UV-LED (380 nm) was fabricated to a exhibit good color-rendering index R_a of 84.5 at a correlated color temperature of 5089 K and CIE coordinates of (0.3425, 0.3478). Based on these results, we are currently evaluating the potential application of BYN:Eu²⁺ as a green-emitting near-UV convertible phosphor.

Original language	English
Pages (from-to)	3740-3744
Number of pages	5
Journal	Journal of Materials Chemistry
Volume	21
Issue number	11
DOIs	https://doi.org/10.1039/c0jm03573d
Publication status	Published - Mar 21 2011
Externally published	Yes

ASJC Scopus subject areas

General Chemistry
Materials Chemistry

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@article{b0eced469478447cb680d03cce3b5dac,

title = "(Ba,Sr)Y2Si2Al2O2N 5:Eu2+: A novel near-ultraviolet converting green phosphor for white light-emitting diodes",

abstract = "A highly intense green-emitting phosphor BaY2Si 2Al2O2N5:Eu2+ (BYN:Eu2+) peaking at 511 nm was synthesized by a solid state reaction. The structure refinement, luminescence properties of BYN:Eu 2+ phosphors as well as their thermal quenching and the fabrication of white-light-emitting diodes (W-LEDs) were firstly investigated. By partially substituting Ba by Sr, namely (Ba,Sr)Y2Si2Al 2O2N5:Eu2+ (BSYN:Eu2+), the emission peak was shifted to 565 nm, giving a yellow-orange color, due to the splitting of the 5d energy level. By utilizing a mixture of blue-emitting BaMgAl10O17:Eu2+, green-emitting BYN:Eu 2+ and red-emitting CaAlSiN3:Eu2+ phosphors as light converters, an intense white GaN-based n-UV-LED (380 nm) was fabricated to a exhibit good color-rendering index Ra of 84.5 at a correlated color temperature of 5089 K and CIE coordinates of (0.3425, 0.3478). Based on these results, we are currently evaluating the potential application of BYN:Eu2+ as a green-emitting near-UV convertible phosphor.",

author = "Liu, \{Wei Ren\} and Yeh, \{Chiao Wen\} and Huang, \{Chien Hao\} and Lin, \{Chun Che\} and Chiu, \{Yi Chen\} and Yeh, \{Yao Tsung\} and Liu, \{Ru Shi\}",

year = "2011",

month = mar,

day = "21",

doi = "10.1039/c0jm03573d",

language = "English",

volume = "21",

pages = "3740--3744",

journal = "Journal of Materials Chemistry",

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publisher = "Royal Society of Chemistry",

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T1 - (Ba,Sr)Y2Si2Al2O2N 5:Eu2+

T2 - A novel near-ultraviolet converting green phosphor for white light-emitting diodes

AU - Liu, Wei Ren

AU - Yeh, Chiao Wen

AU - Huang, Chien Hao

AU - Lin, Chun Che

AU - Chiu, Yi Chen

AU - Yeh, Yao Tsung

AU - Liu, Ru Shi

PY - 2011/3/21

Y1 - 2011/3/21

N2 - A highly intense green-emitting phosphor BaY2Si 2Al2O2N5:Eu2+ (BYN:Eu2+) peaking at 511 nm was synthesized by a solid state reaction. The structure refinement, luminescence properties of BYN:Eu 2+ phosphors as well as their thermal quenching and the fabrication of white-light-emitting diodes (W-LEDs) were firstly investigated. By partially substituting Ba by Sr, namely (Ba,Sr)Y2Si2Al 2O2N5:Eu2+ (BSYN:Eu2+), the emission peak was shifted to 565 nm, giving a yellow-orange color, due to the splitting of the 5d energy level. By utilizing a mixture of blue-emitting BaMgAl10O17:Eu2+, green-emitting BYN:Eu 2+ and red-emitting CaAlSiN3:Eu2+ phosphors as light converters, an intense white GaN-based n-UV-LED (380 nm) was fabricated to a exhibit good color-rendering index Ra of 84.5 at a correlated color temperature of 5089 K and CIE coordinates of (0.3425, 0.3478). Based on these results, we are currently evaluating the potential application of BYN:Eu2+ as a green-emitting near-UV convertible phosphor.

AB - A highly intense green-emitting phosphor BaY2Si 2Al2O2N5:Eu2+ (BYN:Eu2+) peaking at 511 nm was synthesized by a solid state reaction. The structure refinement, luminescence properties of BYN:Eu 2+ phosphors as well as their thermal quenching and the fabrication of white-light-emitting diodes (W-LEDs) were firstly investigated. By partially substituting Ba by Sr, namely (Ba,Sr)Y2Si2Al 2O2N5:Eu2+ (BSYN:Eu2+), the emission peak was shifted to 565 nm, giving a yellow-orange color, due to the splitting of the 5d energy level. By utilizing a mixture of blue-emitting BaMgAl10O17:Eu2+, green-emitting BYN:Eu 2+ and red-emitting CaAlSiN3:Eu2+ phosphors as light converters, an intense white GaN-based n-UV-LED (380 nm) was fabricated to a exhibit good color-rendering index Ra of 84.5 at a correlated color temperature of 5089 K and CIE coordinates of (0.3425, 0.3478). Based on these results, we are currently evaluating the potential application of BYN:Eu2+ as a green-emitting near-UV convertible phosphor.

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(Ba,Sr)Y₂Si₂Al₂O₂N ₅:Eu²⁺: A novel near-ultraviolet converting green phosphor for white light-emitting diodes

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