Thermally stable phosphor-in-glass for enhancement of characteristic in high power LED applications

Eun Kyung Ji; Young Hyun Song; Min Ji Lee; Dae Ho Yoon

doi:10.1016/j.matlet.2015.05.092

Thermally stable phosphor-in-glass for enhancement of characteristic in high power LED applications

Eun Kyung Ji
, Young Hyun Song
, Min Ji Lee
, Dae Ho Yoon

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

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

35 Scopus citations

Abstract

In this study, Y₃Al₅O₁₂:Ce³⁺ (YAG:Ce³⁺) was utilized to generate white-LED. A form of phosphor-in-glass (PiG) is applied instead of epoxy-phosphor mixture, because epoxy-phosphor mixture is thermally unstable. Since the remote type enables to reduce the required content of phosphor and thermal properties, it can solve the problem of color coordinates shift by heat-degradation; this means that LEDs can work more stably even under heat generation. Luminous properties of the PiG are influenced by several variables. But in this study, we focused on the effect of the thickness on thermal stability, which can especially contribute to the application to high-power LED.

Original language	English
Article number	18985
Pages (from-to)	89-92
Number of pages	4
Journal	Materials Letters
Volume	157
DOIs	https://doi.org/10.1016/j.matlet.2015.05.092
State	Published - 3 Jun 2015

Keywords

CCT
CRI
LED
Luminous flux
Phosphor
Phosphor-in-glass

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10.1016/j.matlet.2015.05.092

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title = "Thermally stable phosphor-in-glass for enhancement of characteristic in high power LED applications",

abstract = "In this study, Y3Al5O12:Ce3+ (YAG:Ce3+) was utilized to generate white-LED. A form of phosphor-in-glass (PiG) is applied instead of epoxy-phosphor mixture, because epoxy-phosphor mixture is thermally unstable. Since the remote type enables to reduce the required content of phosphor and thermal properties, it can solve the problem of color coordinates shift by heat-degradation; this means that LEDs can work more stably even under heat generation. Luminous properties of the PiG are influenced by several variables. But in this study, we focused on the effect of the thickness on thermal stability, which can especially contribute to the application to high-power LED.",

keywords = "CCT, CRI, LED, Luminous flux, Phosphor, Phosphor-in-glass",

author = "Ji, \{Eun Kyung\} and Song, \{Young Hyun\} and Lee, \{Min Ji\} and Yoon, \{Dae Ho\}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier B.V.",

year = "2015",

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doi = "10.1016/j.matlet.2015.05.092",

language = "English",

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journal = "Materials Letters",

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T1 - Thermally stable phosphor-in-glass for enhancement of characteristic in high power LED applications

AU - Ji, Eun Kyung

AU - Song, Young Hyun

AU - Lee, Min Ji

AU - Yoon, Dae Ho

PY - 2015/6/3

Y1 - 2015/6/3

N2 - In this study, Y3Al5O12:Ce3+ (YAG:Ce3+) was utilized to generate white-LED. A form of phosphor-in-glass (PiG) is applied instead of epoxy-phosphor mixture, because epoxy-phosphor mixture is thermally unstable. Since the remote type enables to reduce the required content of phosphor and thermal properties, it can solve the problem of color coordinates shift by heat-degradation; this means that LEDs can work more stably even under heat generation. Luminous properties of the PiG are influenced by several variables. But in this study, we focused on the effect of the thickness on thermal stability, which can especially contribute to the application to high-power LED.

AB - In this study, Y3Al5O12:Ce3+ (YAG:Ce3+) was utilized to generate white-LED. A form of phosphor-in-glass (PiG) is applied instead of epoxy-phosphor mixture, because epoxy-phosphor mixture is thermally unstable. Since the remote type enables to reduce the required content of phosphor and thermal properties, it can solve the problem of color coordinates shift by heat-degradation; this means that LEDs can work more stably even under heat generation. Luminous properties of the PiG are influenced by several variables. But in this study, we focused on the effect of the thickness on thermal stability, which can especially contribute to the application to high-power LED.

KW - CCT

KW - CRI

KW - LED

KW - Luminous flux

KW - Phosphor

KW - Phosphor-in-glass

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U2 - 10.1016/j.matlet.2015.05.092

DO - 10.1016/j.matlet.2015.05.092

M3 - Article

AN - SCOPUS:84930959333

SN - 0167-577X

VL - 157

SP - 89

EP - 92

JO - Materials Letters

JF - Materials Letters

M1 - 18985

ER -

Thermally stable phosphor-in-glass for enhancement of characteristic in high power LED applications

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Keywords

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