Chaotic signatures of photoconductive Cu2ZnSnS4 nanostructures explored by Lorenz attractors

Photoconductive and third-order nonlinear optical properties exhibited by Cu2ZnSnS4 nanostructures are presented. The samples were synthetized in thin film form by a spray pyrolysis processing route. Distinctions in the photoconductive behavior throughout the samples were clearly noted by modulating...

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Bibliographic Details
Published in:New journal of physics Vol. 20; no. 2; pp. 023048 - 23056
Main Authors: Hernández-Acosta, M A, Trejo-Valdez, M, Castro-Chacón, J H, Torres-San Miguel, C R, Martínez-Gutiérrez, H, Torres-Torres, C
Format: Journal Article
Language:English
Published: Bristol IOP Publishing 22.02.2018
Subjects:
chaotic attractors
Copper zinc tin sulfide
Electrical phenomena
electrochemical impedance spectroscopy
Nanostructure
Neodymium lasers
nonlinear optics
Optical properties
Optoelectronics
Photoelectricity
Physics
Semiconductor lasers
Spray pyrolysis
Thin films
Two-wave mixing
YAG lasers
ISSN:1367-2630
Online Access:Get full text
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Summary:Photoconductive and third-order nonlinear optical properties exhibited by Cu2ZnSnS4 nanostructures are presented. The samples were synthetized in thin film form by a spray pyrolysis processing route. Distinctions in the photoconductive behavior throughout the samples were clearly noted by modulating their optoelectronic response dependent on electrical frequency. Vectorial two-wave mixing experiments were carried out at a 532 nm wavelength provided by a Nd:YAG laser system to study the optical nonlinearities in the samples. An induced transparency effect was observed during nanosecond single-beam experiments in the nanostructures reported. Quantum and thermal processes were considered to be the main physical mechanism responsible for the photo-electrical phenomena and nonlinear refraction in the nanostructures. Potential applications for developing nanophotonic and nanoelectronic instrumentation systems can be contemplated.
Bibliography:NJP-107215.R1
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ISSN:1367-2630
DOI:10.1088/1367-2630/aaad41