تقرير
Determination of carrier density and dynamics via magneto-electroluminescence spectroscopy in resonant tunneling diodes
| العنوان: | Determination of carrier density and dynamics via magneto-electroluminescence spectroscopy in resonant tunneling diodes |
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| المؤلفون: | de Oliveira, E. R. Cardozo, Naranjo, A., Pfenning, A., Lopez-Richard, V., Marques, G. E., Worschech, L., Hartmann, F., Höfling, S., Teodoro, M. D. |
| المصدر: | Phys. Rev. Applied 15, 014042 (2021) |
| سنة النشر: | 2020 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Condensed Matter - Materials Science, Physics - Applied Physics |
| الوصف: | We study the magneto-transport and magneto-electroluminescence properties of purely n-doped GaAs/Al$_{0.6}$Ga$_{0.4}$As resonant tunneling diodes with an In$_{0.15}$Ga$_{0.85}$As quantum well and emitter prewell. Before the resonant current condition, magneto-transport measurements reveal charge carrier densities comparable for diodes with and without the emitter prewell. The Landau level splitting is observed in the electroluminescence emission from the emitter prewell, enabling the determination of the charge carrier build-up. Our findings show that magneto-electroluminescence spectroscopy techniques provide useful insights on the charge carrier dynamics in resonant tunneling diodes and is a versatile tool to complement magneto-transport techniques. This approach will drive the way for developing potentially more efficient opto-electronic resonant tunneling devices, by e.g., monitoring voltage dependent charge accumulation for improving built-in fields and hence to maximize photodetector efficiency and/or minimize optical losses. Comment: 9 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevApplied.15.014042 |
| URL الوصول: | http://arxiv.org/abs/2007.11736 |
| رقم الأكسشن: | edsarx.2007.11736 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevApplied.15.014042 |
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