A Hybrid Micro-Pixel Based Deep Ultraviolet Light-Emitting Diode Lamp
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概要
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We report on the room temperature electrical and optical characterization of a multichip light-emitting diode (LED) lamp with peak emission at 281 nm. Four pairs of micro-pixel LED arrays were connected in series to fabricate the lamp, which delivered a pulsed output power of 235 mW at 1.18 A (duty cycle ${\sim}0.5$%), and attained a high external quantum efficiency of 4.63%. Under dc operation, the maximum power achieved by this lamp was ${\sim}20$ mW at a drive current of 220 mA. The peak output power improved 1.62-fold after a thermoelectric cooler was added to the device packaging assembly.
- 2011-01-25
著者
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Zhang Bin
Nitek Inc.
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Khan Asif
Department Of Ece University Of South Carolina
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Heidari Ahmad
Nitek Inc.
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Adivarahan Vinod
Nitek Inc.
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Dion Joe
Nitek Inc.
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Lachab Mohamed
Department Of Electrical Engineering University Of South Carolina
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Heidari Ahmad
Nitek, Inc., 1804 Salem Church Road, Irmo, SC 29063, U.S.A.
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Hwang Seongmo
Nitek, Inc., 1804 Salem Church Road, Irmo, SC 29063, U.S.A.
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Nazir Haseeb
Nitek, Inc., 1804 Salem Church Road, Irmo, SC 29063, U.S.A.
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Islam Monirul
Nitek, Inc., 1804 Salem Church Road, Irmo, SC 29063, U.S.A.
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Khan Asif
Department of Electrical Engineering, University of South Carolina, Columbia, SC 29208, U.S.A.
関連論文
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