278 nm deep ultraviolet LEDs with 11% external quantum efficiency

70th Device Research Conference Pub Date : 2012-06-18 DOI:10.1109/DRC.2012.6257013

M. Shatalov, Wenhong Sun, A. Lunev, Xuhong Hu, A. Dobrinsky, Y. Bilenko, Jinwei Yang, M. Shur, R. Gaska, C. Moe, G. Garrett, M. Wraback

引用次数: 8

Abstract

III-Nitride based deep ultraviolet (DUV) light emitting diodes (LEDs) offer smaller size, wider choice of peak emission wavelengths, lower power consumption and reduced cost compared to mercury vapor lamps and other UV light sources. Increasing efficiency of DUV LEDs accelerates their applications in bio-agent detection, analytical instrumentation, phototherapy, disinfection, biotechnology and sensing. We report on 278 nm DUV LEDs with external quantum efficiency exceeding 10 % achieved by improvements of material quality and light extraction.

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278 nm深紫外led具有11%的外部量子效率

与汞灯和其他UV光源相比，基于氮化物的深紫外(DUV)发光二极管(led)提供更小的尺寸，更广泛的峰值发射波长选择，更低的功耗和更低的成本。DUV led效率的提高加快了其在生物试剂检测、分析仪器、光疗、消毒、生物技术和传感等领域的应用。通过改进材料质量和光提取，我们报道了278 nm DUV led的外量子效率超过10%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

70th Device Research Conference

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