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Proceedings Paper

Performance and application of high-power ultraviolet AlGaInN light-emitting diodes
Author(s): Jung Han; Seong-Ran Jeon; Maria Gherasimova; Jie Su; George Cui; Hongbo Peng; Eleni Makarona; Yiping He; Yoon-Kyu Song; Arto V. Nurmikko; Ling Zhou; Werner K. Goetz; Michael R. Krames
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Paper Abstract

We report on high output power from the quaternary AlGaInN multiple quantum well (MQW) ultraviolet light emitting diodes (UV LEDs) in the 340 nm and 280 nm wavelength range. The output power up to 1.5 mW from a 100 μm diameter device with bare-chip configuration was measured under room temperature cw operation. The internal quantum efficiency was estimated to be between 7 and 10%. In addition, the output power and external quantum efficiency for fully packaged 1x1mm2 large area device were as high as 54.6 mW and 1.45%, respectively, at the injection current of 200 A/cm2 under pulsed operation. The devices were incorporated into prototype system for fluorescence based bio-sensing. We also report the performance of 285 nm UV LEDs.

Paper Details

Date Published: 20 October 2004
PDF: 8 pages
Proc. SPIE 5530, Fourth International Conference on Solid State Lighting, (20 October 2004); doi: 10.1117/12.566891
Show Author Affiliations
Jung Han, Yale Univ. (United States)
Seong-Ran Jeon, Yale Univ. (United States)
Maria Gherasimova, Yale Univ. (United States)
Jie Su, Yale Univ. (United States)
George Cui, Yale Univ. (United States)
Hongbo Peng, Brown Univ. (United States)
Eleni Makarona, Brown Univ. (United States)
Yiping He, Brown Univ. (United States)
Yoon-Kyu Song, Brown Univ. (United States)
Arto V. Nurmikko, Brown Univ. (United States)
Ling Zhou, Lumileds Lighting, LLC (United States)
Werner K. Goetz, Lumileds Lighting, LLC (United States)
Michael R. Krames, Lumileds Lighting, LLC (United States)

Published in SPIE Proceedings Vol. 5530:
Fourth International Conference on Solid State Lighting
Ian T. Ferguson; Nadarajah Narendran; Steven P. DenBaars; John C. Carrano, Editor(s)

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