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Chaotic signatures of photoconductive Cu2ZnSnS4 nanostructures explored by Lorenz attractors


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Title Chaotic signatures of photoconductive Cu2ZnSnS4 nanostructures explored by Lorenz attractors
Title of Series New Journal of Physics, Volume 20, 2018
Author Hernández-Acosta, M. A.
Trejo-Valdez, M.
Castro-Chacón, J. H.
Torres-San Miguel, C. R.
Martínez-Gutiérrez, H.
Torres-Torres, Carlos
License CC Attribution 3.0 Unported:
You are free to use, adapt and copy, distribute and transmit the work or content in adapted or unchanged form for any legal purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
DOI 10.5446/38885
Publisher Institute of Physics (IOP), Deutsche Physikalische Gesellschaft (DPG)
Release Date 2018
Language English

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Subject Area Physics
Abstract 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.

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