11 Works
The Ninth International Seminar on Ferroelastic Physics. Abstracts Book
L.N. Korotkov, S.A. Gridnev & A.S. Sidorkin
The 9th International Seminar on Ferroelastics Physics has been organized in Voronezh in september, 2018. This article is the conference volume, it contains the abstracts of about 90 contributions presented at ISFP9, dedicated to the following aspects of ferroelastic physics: Phase Transitions; Lattice Dynamics and Soft Modes; - Crystal Growth, Structure and Physical Properties; Heterogeneous; Glassy and Incommensurate Systems; Domains, Domain Boundaries and Their Dynamics; Multiferroics and Miscellaneous.
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Simulation and optimization of the nSiC layer’s thickness in a nSiC/Si photovoltaic cell
M. Kabe, Y. Lare, L. Ottaviani, M. Pasquinelli, D. Barakel & M. Portail
Simulations of the emitter layer in 3C-SiC heterostructure solar cells were performed by means of
the SCAPS software to model the optimal thickness and predict the influence on cell’s behaviour. Then, the cells have been elaborated by
chemical vapor deposition and characterized. The opto-electrical measurements showed an improvement of the absorption of
photons in the short wavelengths thanks to the thin layer of the emitter, and the non-degradation in bulk of the base cell. On...
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ARMA model for short-term forecasting of solar potential: application to a horizontal surface on Dakar site
A. Mbaye, M.L. Ndiaye, D.M. Ndione, M. Sylla, M.C. Aidara, M. Diaw, V. Traoré, A. Ndiaye & P.A.S. Ndiaye
This paper presents a model for short-term forecasting of solar potential on a horizontal surface. This study is carried
out in to the context of valuing of energy production from photovoltaic solar sources in the Sahelian zone. In this study,
Autoregressive Moving Average (ARMA) process is applied to predict global solar potential on a 24 hours time horizon. The ARMA
(p, q) is based on finding optimum parameters p and q to better fit considered...
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ARMA model for short-term forecasting of solar potential: application to a horizontal surface on Dakar site
A. Mbaye, M.L. Ndiaye, D.M. Ndione, M. Sylla, M.C. Aidara, M. Diaw, V. Traoré, A. Ndiaye & P.A.S. Ndiaye
This paper presents a model for short-term forecasting of solar potential on a horizontal surface. This study is carried
out in to the context of valuing of energy production from photovoltaic solar sources in the Sahelian zone. In this study,
Autoregressive Moving Average (ARMA) process is applied to predict global solar potential on a 24 hours time horizon. The ARMA
(p, q) is based on finding optimum parameters p and q to better fit considered...
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our documentation.
A simple and inexpensive technique for obtaining low dimensional semiconductor nanostructures
S. Larramendi
The isothermal closed space sublimation (ICSS) is a simple and effective technique of low-
cost, used to obtain thin films of semiconducting materials, embedding nanoporous substrates with
semiconducting materials, or to grow nanocrystals inside pores. In this work it is explained how to use
this technique to conform semiconductor structures using porous alumina membranes and ZnO nanorod
matrix as template. As a result a structure with potential use in photovoltaic solar cells is obtained,
with...
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Modelling and simulation of an automatic solar module characteristics data acquisition system
E. Akoro, G.J.P. Tevi, M.E. Faye, M. Sene & A.S. Maiga
This paper is devoted to the design and simulation of an automatic data acquisition system of solar
module characteristics. The system is essentially composed of three parts. The first part is devoted to the acquisition
of the electrical parameters of the solar module (Current, Voltage and Power) in automatic ways using an automatic
variable load. The second part is focused on devices which measure the ambient temperature and solar irradiation.
In the last part, we...
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Characterization and modeling of solar radiation on the ground, application to the estimate of solar potential available on the coast of Nouakchott
Ahmed Sidibba, Diene Ndiaye, Sidi Bouhamady & Menny El Bah
The purpose of this work is to evaluate four empirical models developed in literature such as
Ghouard, Perrin Brichambaut, Bird and Hulstrom and Dependent model of the Link trouble factor. The validation of
these different theoretical models was carried out using solar global radiation data collected on the Cheikh Zayed
Nouakchott power plant. These measurements were carried out at a time step of 5 minutes during the period of
one year. (April 1, 2015 to...
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Optical properties of PZN-PT nanoparticles thin layer on ITO glass for photovoltaic application
R. Ndioukane, D. Kobor, L. Motte & J. Solard
In this work, undoped and Mn doped Pb(Zn 1/3 Nb 2/3 )O 3 -4.5PbTiO 3 nanoparticles were dispersed in
biopolymer and in mixed biopolymer + pentacene as active layer and deposited by spin coating on ITO glasses.
Morphological, optical and electrical properties of these layers were investigated. SEM images show the
superposition of different deposited layers ITO/TiO2/PZN-PT-np-biopolymer on glass substrate with thicknesses of
1.600 μm, 1.505 μm and 1.765 μm respectively. The absorbance value in...
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Design and optimization of silicon nanostructures
B. Dieng, M. Beye, M. Toure, D. Diouf, D. Kobor & A.S. Maiga
in this work, recent advances in various silicon nanostructures used in crystalline
silicon solar cells for antireflection and light trapping are reviewed. Simulations and optimizations
are also performed for the most relevant of these nanostructures. The results showed that
nanocones and nanoparaboloids outperform nanopillars and give almost the same antireflective
performance, reducing the average reflectance of the crystalline silicon surface below 2% in the
wavelength range 300-1100 nm and under normal incidence. This reflectance is...
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Raman active modes of single-wall boron nitride nanotubes inside carbon nanotubes
A.M. Nassir, AH. Rahmani, M. Boutahir, B. Fakrach, H. Chadli & A. Rahmani
The structure of boron–nitride nanotubes (BNNTs) is very similar to that of CNTs, and they exhibit many similar physical and chemical properties. In particular, a single walled boron nitride nanotube (BNNT) and a single walled carbon nanotube (CNT) have been reported. The spectral moment’s method (SMM) was shown to be a powerful tool for determining vibrational spectra (infrared absorption, Raman scattering and inelastic neutron- scattering spectra) of harmonic systems. This method can be applied to...
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Lecture on the anomalous diffusion in Condensed Matter Physics
M. Benhamou
Diffusion is a natural or artificial process that governs many phenomena in nature. The most
known diffusion is the Brownian or normal motion, where the mean-square-displacement of the tracer (diffusive
particle among others) increases as the square-root of time. It is not the case, however, for complex systems,
where the diffusion is rather slow, because at small-scales, these media present an heterogenous structure.
This kind of slow motion is called subdiffusion, where the associated mean-square-displacement...
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