Vertical Stand Transparent Light-Emitting Diode Architecture for High-Efficiency and High-Power Light-Emitting Diodes
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概要
- 論文の詳細を見る
Using a transparent ZnO vertical stand as a submount, a novel Light-emitting diode architecture, which is similar to conventional lighting bulbs, was proposed. The emission power of a blue LED based on $c$-plane (0001) bulk GaN was increased by 14.2 and 5.1% compared with those of conventional and suspended die packages, respectively. The output power and external quantum efficiency of LEDs respectively reached 31.7 mW and 57.1% at a forward current of 20 mA under direct current conditions. The high thermal conductivity and refractive index of the transparent submount simultaneously resulted in high current operation and high external efficiency.
- 2010-08-25
著者
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Sonoda Junichi
Materials Department University Of California
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Ohta Hiroaki
Materials Department University Of California
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Pan Chih-chien
Materials Department University Of California
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Koslow Ingrid
Materials Department University Of California
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Nakamura Shuji
Materials Department University Of Cahfornia
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Sonoda Junichi
Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A.
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Ha Jun-Seok
Materials Department, University of California, Santa Barbara, CA 93106, U.S.A.
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DenBaars Steven
Materials Department and Electrical and Computer Engineering Department, University of California, Santa Barbara, CA 93106, U.S.A.
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Ha Jun-Seok
Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A.
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DenBaars Steven
Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A.
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Koslow Ingrid
Materials Department, University of California, Santa Barbara, CA 93106-5050, U.S.A.
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