Categories of oxide phosphors

Dae Ho Yoon; Young Hyun Song

doi:10.1007/978-3-662-52771-9_9

Categories of oxide phosphors

Dae Ho Yoon
, Young Hyun Song

Department of Advanced Materials Science and Engineering

Sungkyunkwan University

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

4 Scopus citations

Abstract

White light-emitting diodes (LEDs) are attractive as a solid-state lighting device. Especially, phosphor materials are fundamental component for white-light generation. For the generation of white LEDs, the InGaN blue LED chips and the yellow light from cerium-activated yttrium aluminum garnet phosphor (Y₃Al₅O₁₂:Ce³⁺) have been used. These white LEDs usually have a highly correlated color temperature >5000 K and a low color-rendering index (CRI) value, which produces a cold white light. An alternative is to blend red, green, and blue (RGB) phosphors on a near-UV chips emitting chip. These oxide phosphors play a very important role. At a present time, remote phosphors are used as key materials on InGaN blue LED chips for solving the thermal problem. As the remote phosphors are applied to LEDs, the system efficiency could be increased ≤30 %. In this section, we will discuss the oxide phosphor including the new remote phosphor for the generation of white light-emitting diodes LEDs.

Original language	English
Title of host publication	Phosphors, up Conversion Nano Particles, Quantum Dots and Their Applications
Subtitle of host publication	Volume 1
Publisher	Springer Berlin Heidelberg
Pages	265-283
Number of pages	19
ISBN (Electronic)	9783662527719
ISBN (Print)	9783662527696
DOIs	https://doi.org/10.1007/978-3-662-52771-9_9
State	Published - 1 Jan 2016

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10.1007/978-3-662-52771-9_9

Cite this

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title = "Categories of oxide phosphors",

abstract = "White light-emitting diodes (LEDs) are attractive as a solid-state lighting device. Especially, phosphor materials are fundamental component for white-light generation. For the generation of white LEDs, the InGaN blue LED chips and the yellow light from cerium-activated yttrium aluminum garnet phosphor (Y3Al5O12:Ce3+) have been used. These white LEDs usually have a highly correlated color temperature >5000 K and a low color-rendering index (CRI) value, which produces a cold white light. An alternative is to blend red, green, and blue (RGB) phosphors on a near-UV chips emitting chip. These oxide phosphors play a very important role. At a present time, remote phosphors are used as key materials on InGaN blue LED chips for solving the thermal problem. As the remote phosphors are applied to LEDs, the system efficiency could be increased ≤30 \%. In this section, we will discuss the oxide phosphor including the new remote phosphor for the generation of white light-emitting diodes LEDs.",

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AB - White light-emitting diodes (LEDs) are attractive as a solid-state lighting device. Especially, phosphor materials are fundamental component for white-light generation. For the generation of white LEDs, the InGaN blue LED chips and the yellow light from cerium-activated yttrium aluminum garnet phosphor (Y3Al5O12:Ce3+) have been used. These white LEDs usually have a highly correlated color temperature >5000 K and a low color-rendering index (CRI) value, which produces a cold white light. An alternative is to blend red, green, and blue (RGB) phosphors on a near-UV chips emitting chip. These oxide phosphors play a very important role. At a present time, remote phosphors are used as key materials on InGaN blue LED chips for solving the thermal problem. As the remote phosphors are applied to LEDs, the system efficiency could be increased ≤30 %. In this section, we will discuss the oxide phosphor including the new remote phosphor for the generation of white light-emitting diodes LEDs.

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Categories of oxide phosphors

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