What is it about?
We have investigated the effect of different magnesium doping in the EBL and we proposed a formula to fit the optical power degradation for UV-C LEDs. The model is based on the diffusion of ions (possibly hydrogen ions) from the p-side, and especially the EBL, toward the active region that limits the defect generation rate, leading to a longer LED lifetime.
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Why is it important?
We presented for the first time an optical degradation model for UV-C LEDs based on the diffusion of ions from p-side
Perspectives
This publication is a starting point for future work on optical degradation of UV-C LEDs, from which we can elaborate and expand out proposed model
Dr. Francesco Piva
Department of Information Engineering, University of Padova
Read the Original
This page is a summary of: Impact of Mg-doping on the performance and degradation of AlGaN-based UV-C LEDs, Applied Physics Letters, April 2023, American Institute of Physics,
DOI: 10.1063/5.0142054.
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