Effect of the Hole Mobility on the Emission Spectrum of a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode
Römer F, Hofmann G, Höpfner J, Schilling M, Muhin A, Wernicke T, Kneissl M, Witzigmann B (2023)
Publication Type: Conference contribution
Publication year: 2023
Publisher: IEEE Computer Society
Book Volume: 2023-September
Pages Range: 61-62
Conference Proceedings Title: Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD
Event location: Turin, ITA
ISBN: 9798350314298
DOI: 10.1109/NUSOD59562.2023.10273498
Abstract
Deep ultraviolet (DUV) light emitting diodes (LED) have matured in the past years but their efficiency still provides space for improvement. Below 265nm emission wavelength the quantum efficiency has been found to decrease almost exponentially. This is commonly attributed to the low light extraction efficiency and the small internal quantum efficiency. Increasing the internal quantum efficiency in this regime requires a deep understanding of the physical processes in the active region. To this end, we investigate the emission spectra of a mixed quantum well DUV LED emitting at 233nm and 250nm wavelength by means of physics based simulations. By comparing the simulations with measured spectra we estimate figures of physical properties entering the carrier transport. In particular we localize the hole mobility in the doped Aluminium Gallium Nitride barriers of the active region.
Authors with CRIS profile
Friedhard Römer
Professur für Optoelektronik
Gregor Hofmann
Professur für Optoelektronik
Bernd Witzigmann
Professur für Optoelektronik
Additional Organisation(s)
Involved external institutions
Germany (DE)How to cite
APA:
Römer, F., Hofmann, G., Höpfner, J., Schilling, M., Muhin, A., Wernicke, T.,... Witzigmann, B. (2023). Effect of the Hole Mobility on the Emission Spectrum of a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode. In Paolo Bardella, Alberto Tibaldi (Eds.), Proceedings of the International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD (pp. 61-62). Turin, ITA, IT: IEEE Computer Society.
MLA:
Römer, Friedhard, et al. "Effect of the Hole Mobility on the Emission Spectrum of a Deep Ultraviolet Mixed Quantum Well Light Emitting Diode." Proceedings of the 23rd International Conference on Numerical Simulation of Optoelectronic Devices, NUSOD 2023, Turin, ITA Ed. Paolo Bardella, Alberto Tibaldi, IEEE Computer Society, 2023. 61-62.
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