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5 March 2021 AlGaN-based deep UV LEDs: applications and challenges
Michael Kneissl, Giulia Cardinali, Johannes Enslin, Christian Kuhn, Martin Guttmann, Frank Mehnke, Luca Sulmoni, Norman Susilo, Tim Wernicke, Hyun Kyong Cho, Johannes Glaab, Jan Ruschel, Sylvia Hagedorn, Neyhsa Lobo-Ploch, Carsten Netzel, Jens Rass, Sven Einfeldt, Markus Weyers
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Abstract
Driven by applications like monitoring of combustion engines, toxic gases, nitrates in water, as well as the inactivation of multi-drug-resistant germs, the development of AlGaN-based light emitting diodes in the deep ultraviolet spectral range (DUV-LEDs) has markedly intensified. This paper will provide a review of recent advances in development of DUV-LEDs, including the realization of low defect density AlGaN heterostructures on sapphire substrates. The performance characteristics of DUV LEDs emitting in the wavelength range between 260 nm and 217 nm will be discussed and milli-Watt power LEDs near 233 nm will be demonstrated.
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© (2021) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael Kneissl, Giulia Cardinali, Johannes Enslin, Christian Kuhn, Martin Guttmann, Frank Mehnke, Luca Sulmoni, Norman Susilo, Tim Wernicke, Hyun Kyong Cho, Johannes Glaab, Jan Ruschel, Sylvia Hagedorn, Neyhsa Lobo-Ploch, Carsten Netzel, Jens Rass, Sven Einfeldt, and Markus Weyers "AlGaN-based deep UV LEDs: applications and challenges", Proc. SPIE 11686, Gallium Nitride Materials and Devices XVI, 116860Y (5 March 2021); https://doi.org/10.1117/12.2584960
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