Browsing by Name "Rebello Sousa Dias, M."

Now showing items 1-6 of 6

    • Light sensitive memristor with bi-directional and wavelength-dependent conductance control 

      Maier, P.; Hartmann, F.; Rebello Sousa Dias, M.; Emmerling, M.; Schneider, C.; Castelano, L. K.; Kamp, M.; Marques, G. E.; Lopez-Richard, V.; Worschech, L.; Höfling, S. (2016-07-11) - Journal article
      We report the optical control of localized charge on positioned quantum dots in an electro-photo-sensitive memristor. Interband absorption processes in the quantum dot barrier matrix lead to photo-generated electron-hole-pairs ...

    • Mimicking of pulse shape-dependent learning rules with a quantum dot memristor 

      Maier, P.; Hartmann, Fabian; Rebello Sousa Dias, M.; Emmerling, M.; Schneider, C.; Castelano, L. K.; Kamp, M.; Marques, G. E.; Lopez-Richard, V.; Worschech, L.; Höfling, Sven (2016-10-07) - Journal article
      We present the realization of four different learning rules with a quantum dot memristor by tuning the shape, the magnitude, the polarity and the timing of voltage pulses. The memristor displays a large maximum to minimum ...

    • Nanoscale tipping bucket effect in a quantum dot transistor-based counter 

      Hartmann, F.; Maier, P.; Rebello Sousa Dias, M.; Göpfert, S.; Castelano, L. K.; Emmerling, M.; Schneider, C.; Höfling, S.; Kamp, M.; Pershin, Y. V.; Marques, G. E.; Lopez-Richard, V.; Worschech, L. (2017-04-12) - Journal article
      Electronic circuits composed of one or more elements with inherent memory - memristors, memcapacitors and meminductors - offer lower circuit complexity and enhanced functionality for certain computational tasks. Networks ...

    • Nanothermometer based on resonant tunneling diodes : from cryogenic to room temperatures 

      Pfenning, A.; Hartmann, F.; Rebello Sousa Dias, M.; Castelano, L.K.; Süßmeier, C.; Langer, F.; Höfling, S.; Kamp, M.; Marques, G.E.; Worschech, L.; Lopez-Richard, V. (2015-06-23) - Journal article
      Sensor miniaturization together with broadening temperature sensing range are fundamental challenges in nanothermometry. By exploiting a large temperature-dependent screening effect observed in a resonant tunneling diode ...

    • Photocurrent-voltage relation of resonant tunneling diode photodetectors 

      Pfenning, A.; Hartmann, F.; Rebello Sousa Dias, M.; Langer, F.; Kamp, M.; Castelano, L.K.; Lopez-Richard, V.; Marques, G.E.; Höfling, Sven; Worschech, L. (2015-08-24) - Journal article
      We have investigated photodetectors based on an AlGaAs/GaAs double barrier structure with a nearby lattice-matched GaInNAs absorption layer. Photons with the telecommunication wavelength λ=1.3 μm lead to hole accumulation ...

    • Temperature tuning from direct to inverted bistable electroluminescence in resonant tunneling diodes 

      Hartmann, F.; Pfenning, A.; Rebello Sousa Dias, M.; Langer, F.; Höfling, Sven; Kamp, M.; Worschech, L.; Castelano, L. K.; Marques, G. E.; Lopez-Richard, V (2017-10-21) - Journal article
      We study the electroluminescence (EL) emission of purely n-doped resonant tunneling diodes in a wide temperature range. The paper demonstrates that the EL originates from impact ionization and radiative recombination in ...