Scientific Results

Exploring phase control in a quantum dot light-emitting diode

Year: 2018

Authors: Al Husseini H., Abdalah SF., Al Naimee K., Meucci R., Arecchi F.T.

Autors Affiliation: [Al Husseini, H.] Thi Qar Univ, Coll Sci, Nassiriya Nanotechnol Res Lab, Nassiriyah, Iraq.
[Abdalah, S. F.; Al Naimee, K. A. M.; Meucci, R.; Arecchi, F. T.] Ist Nazl Ott CNR, Florence, Italy.
[Al Naimee, K. A. M.] Univ Baghdad, Coll Sci, Dept Phys, Baghdad, Iraq.
[Arecchi, F. T.] Univ Florence, Florence, Italy.

Abstract: We report phase control in a periodically driven chaotic nanosystem consisting of a quantum dot light-emitting diode. Such a dynamical system is a class C laser, whence the charactering features are intrinsically chaotic. Phase control relies on the addition of small parametric harmonic perturbations with adjustable phase. Phase control is demonstrated by changing both frequency and strength of the controlling perturbations. Our results show that phase control has two crucial effects on a quantum dot light-emitting diode. First, it can enhance the spiking behavior in either regular or chaotic regimes; second, it is able to turn periodic behavior to chaotic behavior with a minimal perturbation when a resonance condition at half of the driving frequency is achieved.

Journal/Review: NANOMATERIALS AND NANOTECHNOLOGY

Volume: 8      Pages from: 184798041878238  to: 184798041878238

KeyWords: C (programming language); Control engineering; Diodes; Dynamical systems; Nanocrystals; Nanosystems; Optical waveguides; Phase control; Semiconductor quantum dots, Chaotic behaviors; Driving frequencies; Harmonic perturbations; Periodic behavior; Phase; Quantum dot devices; Quantum-dot light emitting diodes; Resonance condition, Organic light emitting diodes (OLED)
DOI: 10.1177/1847980418782389

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