Strongly Enhanced Phosphor Efficiency in GaInN White Light-Emitting Diodes Using Remote Phosphor Configuration and Diffuse Reflector Cup
スポンサーリンク
概要
- 論文の詳細を見る
Enhancement of phosphor efficiency is reported for GaInN-based white light-emitting diodes (LEDs) employing a large separation between the primary LED emitter and the wavelength converter, and a diffuse reflector cup. Ray-tracing simulations show that extraction efficiency of wavelength-converted light is enhanced by 75%. The experimental improvement in phosphor efficiency of blue-pumped yellow phosphor is 15.4% compared with conventional phosphor-based white LEDs. The improvement is attributed to reduced re-absorption of wavelength-converted light by the LED chip.
- 2005-05-10
著者
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Luo Hong
Department Of Physics Applied Physics And Astronomy Rensselaer Polytechnic Institute
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Cho Jaehee
Photonics Program Team Samsung Advanced Institute Of Technology
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Park Yongjo
Photonics Program Team Samsung Advanced Institute Of Technology
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Schubert Eric
Department Of Electrical Computer And Systems Engineering Rensselaer Polytechnic Institute
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Sone Cheolsoo
Photonics Program Team Samsung Advanced Institute Of Technology
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Kim Jong
Department Of Agricultural Bio-resources National Academy Of Agricultural Science Rural Development
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Luo Hong
Department of Physics, Applied Physics, and Astronomy, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
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Schubert Eric
Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
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Cho Jaehee
Photonics Program Team, Samsung Advanced Institute of Technology, Suwon 440-600, Korea
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Park Yongjo
Photonics Program Team, Samsung Advanced Institute of Technology, Suwon 440-600, Korea
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Sone Cheolsoo
Photonics Program Team, Samsung Advanced Institute of Technology, Suwon 440-600, Korea
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Kim Jong
Department of Electrical, Computer, and Systems Engineering, Rensselaer Polytechnic Institute, Troy, NY 12180, U.S.A.
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