Fabrication and Illuminance Properties of Phosphor-conversion Green Light-emitting Diode with a Luminous Efficacy over 100 lm/W

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概要

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• We have developed phosphor-conversion green light-emitting diode (LED) based on a combination of near-ultraviolet (n-UV) LED and the green phosphor material of SrBaEuSiO, which can provide a luminous efficacy over 110 lm/W at a wavelength of about 530 nm. The present green LED structure is expected to cover the longer wavelengths beside 520 nm that are impossible to generate by semiconductor LEDs with high luminous efficacy. By improving the external quantum efficiency of n-UV LED chips and the extraction efficacy in the phosphor, it is theoretically anticipated that the luminous efficacy can be increased to be about 210 lm/W.

• 社団法人照明学会の論文

著者

• SAKUTA Hiroaki

  Graduate School of Science and Engineering, Yamaguchi University

• UCHIDA Yuji

  Faculty of Engineering, Yamaguchi University

• KURAI Satoshi

  Graduate School of Science and Engineering, Yamaguchi University

• TAGUCHI Tsunemasa

  Graduate School of Science and Engineering, Yamaguchi University

• TAGUCHI Takao

  SORTEC Corporation

• Uchida Yuji

  Faculty Of Engineering Yamaguchi University

• Kurai Satoshi

  Science And Engineering Yamaguchi University

• Kurai Satoshi

  Graduate School Of Science And Engineering Yamaguchi University

• Sakuta Hiroaki

  Graduate School Of Science And Engineering Yamaguchi University

• Kurai Satoshi

  Department Of Electrical And Electronic Engineering Tokushima University

• Taguchi Tsunemasa

  Graduate School Of Science And Engineering Yamaguchi University

• Taguchi T

  Department Of Electrical And Electronic Engineering Yamaguchi University

• Taguchi Tsunemasa

  Yamaguchi Univ. Yamaguchi Jpn

• Taguchi Tsunemasa

  Department Of Materials Science And Engineering Yamaguchi University

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