Properties of Czochralski grown Ce,Gd:Y3Al5O 12 single crystal for white light-emitting diode

Anastasiya Latynina; Makoto Watanabe; Daisuke Inomata; Kazuo Aoki; Yoshiyuki Sugahara; Encarnacíon García Víllora; Kiyoshi Shimamura

doi:10.1016/j.jallcom.2012.11.096

Properties of Czochralski grown Ce,Gd:Y₃Al₅O ₁₂ single crystal for white light-emitting diode

Anastasiya Latynina^*, Makoto Watanabe, Daisuke Inomata, Kazuo Aoki, Yoshiyuki Sugahara, Encarnacíon García Víllora, Kiyoshi Shimamura

^*Corresponding author for this work

School of Advanced Science and Engineering

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

73 Citations (Scopus)

Abstract

Czochralski grown Ce and Gd-doped Y₃Al₅O₁₂ (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93%.

Original language	English
Pages (from-to)	89-92
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	553
DOIs	https://doi.org/10.1016/j.jallcom.2012.11.096
Publication status	Published - 2013 Mar 15

Keywords

Crystal growth
Luminescence
Optical properties
Oxide materials
Phosphors

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

Access to Document

10.1016/j.jallcom.2012.11.096

Cite this

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title = "Properties of Czochralski grown Ce,Gd:Y3Al5O 12 single crystal for white light-emitting diode",

abstract = "Czochralski grown Ce and Gd-doped Y3Al5O12 (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93%.",

keywords = "Crystal growth, Luminescence, Optical properties, Oxide materials, Phosphors",

author = "Anastasiya Latynina and Makoto Watanabe and Daisuke Inomata and Kazuo Aoki and Yoshiyuki Sugahara and {Garc{\'i}a V{\'i}llora}, Encarnac{\'i}on and Kiyoshi Shimamura",

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T1 - Properties of Czochralski grown Ce,Gd:Y3Al5O 12 single crystal for white light-emitting diode

AU - Latynina, Anastasiya

AU - Watanabe, Makoto

AU - Inomata, Daisuke

AU - Aoki, Kazuo

AU - Sugahara, Yoshiyuki

AU - García Víllora, Encarnacíon

AU - Shimamura, Kiyoshi

PY - 2013/3/15

Y1 - 2013/3/15

N2 - Czochralski grown Ce and Gd-doped Y3Al5O12 (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93%.

AB - Czochralski grown Ce and Gd-doped Y3Al5O12 (Ce,Gd:YAG) single crystal demonstrated superior performance features in a new concept of white LED where it is used as thin single crystal phosphor plates (SCPPs). New SCPP-based white LED realizes epoxy resin free package, which allows to eliminate the photodegradation issue of the organic material. Optical, thermal and electrical properties of SCPPs and SCPP-based white LEDs are discussed with the powder phosphor and commercial LED reference. SCPPs showed significantly higher values and better stability under the high temperatures, irradiation and current. Quantum efficiency was found to be as high as 93%.

KW - Crystal growth

KW - Luminescence

KW - Optical properties

KW - Oxide materials

KW - Phosphors

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