A Hybrid Micro-Pixel Based Deep Ultraviolet Light-Emitting Diode Lamp

被引：33

作者：

Hwang, Seongmo ^{[2
]}

Islam, Monirul ^{[2
]}

Zhang, Bin ^{[2
]}

Lachab, Mohamed ^{[1
]}

Dion, Joe ^{[2
]}

Heidari, Ahmad ^{[2
]}

Nazir, Haseeb ^{[2
]}

Adivarahan, Vinod ^{[2
]}

Khan, Asif ^{[1
]}

机构：

[1] Univ S Carolina, Dept Elect Engn, Columbia, SC 29208 USA

[2] Nitek Inc, Irmo, SC 29063 USA

来源：

APPLIED PHYSICS EXPRESS | 2011年 / 4卷 / 01期

关键词：

280; NM;

D O I：

10.1143/APEX.4.012102

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

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 similar to 0.5%), and attained a high external quantum efficiency of 4.63%. Under dc operation, the maximum power achieved by this lamp was similar to 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. (C) 2011 The Japan Society of Applied Physics

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页数：3

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