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Complex dynamics in quantum dot light emitting diodes

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Abstract

We report both experimentally and theoretical investigation the appearance of Mixed Mode Oscillations (MMOs) and chaotic spiking in a Quantum Dot Light Emitting Diode (QDLED). In the theoretical treatment the proposed model reproduces Homoclinic Chaos (HC) and MMOs. The dynamics is completely determined by the variation of the injecting bias current in the wetting layer of the QDLED. The influence of the injecting current on the transition between Mixed Mode Oscillations and chaotic behavior has been also investigated. It was found that the theoretical model verifies the experimental findings.

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Authors and Affiliations

  1. Istituto Nazionale di Ottica- CNR, Largo E. Fermi 6, 50125, Firenze, Italy

    Kais Al Naimee, Sora F. Abdalah, Riccardo Meucci & Fortunato T. Arecchi

  2. Dept. of Physics, College of Science, University of Baghdad, Al Jadiriyah, Baghdad, Iraq

    Kais Al Naimee, Hussein Al Husseini & Ali H. Khedir

  3. Dept. of Physics, College of Science, Thi-Qar University, ThiQar, Iraq

    Hussein Al Husseini & Amin Al Khursan

  4. Professor Emeritus of Physics, University of Firenze, Firenze, Italy

    Fortunato T. Arecchi

Authors
  1. Kais Al Naimee
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  2. Hussein Al Husseini
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  3. Sora F. Abdalah
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  4. Amin Al Khursan
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  5. Ali H. Khedir
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  6. Riccardo Meucci
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  7. Fortunato T. Arecchi
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Correspondence to Kais Al Naimee.

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Al Naimee, K., Al Husseini, H., Abdalah, S. et al. Complex dynamics in quantum dot light emitting diodes. Eur. Phys. J. D 69, 257 (2015). https://doi.org/10.1140/epjd/e2015-60201-x

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  • DOI: https://doi.org/10.1140/epjd/e2015-60201-x

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