Exploring phase control in a quantum dot light-emitting diode
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: 10.1177/1847980418782389Connecting to view paper tab on IsiWeb: Click here