D. Seuret-Jimenez

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• PhD
• Professor (Full) at Universidad Autónoma del Estado de Morelos

The photovoltaic effect in p-CuInSe,ln-CdS heterojunctions has been obtained by the evaporation of In-doped CdS thin lilm on a slntercd CulnSe, substrate. By suitable selection of sintering conditions It was, possible to obtain large grain CulnSe2. poly-crystal with controlled electrical properties for solar cells. An efficiency of about 6.4% was o...

Electrical safety is the state of acceptable risk that allows functionality, operation and maintenance; safeguarding the user and the installations, equipment and systems. Protocols are necessary; however the complexity of the system and the current environments make the concept of safety to be closely linked to safe working procedures, not only wi...

The purpose of this study was to propose an interactive computer system that utilises the MATLAB Fuzzy Logic Designer to measure the level of implementation of SDG 8, which focuses on sustainable decent work (SDW) and economic growth. This study used policies and laws as parameters to determine the presence or absence of SDW. The fuzzy method was i...

This document collects and summarizes the existing findings in the literature of regulations applicable to grid-connected and non-grid-connected photovoltaic systems at an international level. The documentary review synthesizes the content of each standard and shows the distribution of the actual regulations in Europe and America to find similariti...

Focused upon the inherent feature of game theory, particularly in models with multiple participants in quest of equilibrium as the optimal solution , the manuscript aims to introduce a theorem from which a model is proposed, the latter used as a metric index for the accuracy assessment of mathematical modelings. A promising and novel method is deri...

In this paper, we present six new contributions: two novel definitions and four groundbreaking theorems related to the theoretical foundations of the integral Te transform, with a specific focus on analyzing functions with integrable modulus. The definitions referred to the Te window and the Te transform in two parameters, respectively. The theorem...

Focused upon the inherent feature of game theory, particularly in models with multiple participants in quest of equilibrium as the optimal solution , the manuscript aims to introduce a theorem from which a model is proposed, the latter used as a metric index for the accuracy assessment of mathematical modelings. A promising and novel method is deri...

Using a novel mathematical tool called the Te-gram, researchers analyzed the energy distribution of frequency components in the scale–frequency plane. Through this analysis, a frequency band of approximately 12 Hz is identified, which can be isolated without distorting its constituent frequencies. This band, along with others, remained inseparable...

Focused upon the inherent feature of game theory, particularly in models with multiple participants in quest of equilibrium as the optimal solution , the manuscript aims to introduce a theorem from which a model is proposed, the latter used as a metric index for the accuracy assessment of mathematical modelings. A promising and novel method is deri...

The inherent feature of game theory, in regards to concentrating on models with several participants, to seek the solution of a game, called equilibrium, is the impelling cause of this research which aims to bring in a theorem whose corollary leads to a new model, which shall be a metric index for the accuracy assessment of math modelings; then, a...

Environmental conditions influence the development of solar cell technologies; variables such as solar irradiation, wind speed, and ambient temperature influence the operating temperature of the cells, which affect their electrical performance; however, this effect may differ according to the solar technology. In the case of Dye-Sensitized Solar Ce...

This article solves the problem of detecting water leaks with a minimum size of down to 1 mm in diameter. Two new mathematical tools are used to solve this problem: the first one is the Te cross-spectral density and the second is Te coherence. These mathematical tools provide the possibility of discriminating spurious frequency components, making u...

In this work, we propose a fuzzy inference as a decision support system built in the MATLAB Fuzzy Logic Designer for evaluating manual material handling risk conditions. The input variables for the fuzzy decision were: (1) the total time duration of the manual material handling in one shift of 450 min, with 3 h considered the maximal exposition tim...

Failures in photovoltaic systems are a major problem since they cause a decrease in the production of electrical energy. It is a challenge for the scientific community to obtain algorithms that adapt to existing systems, reducing the probability density of false positives. This paper solves this problem, presenting two contributions aimed at detect...

This article shows a new Te-transform and its periodogram for applications that mainly exhibit stochastic behavior with a signal-to-noise ratio lower than −30 dB. The Te-transform is a dyadic transform that combines the properties of the dyadic Wavelet transform and the Fourier transform. This paper also provides another contribution, a corollary o...

Detection, diagnostic and isolation of crankshaft failures is of vital importance to ensure reliable operation during the course of their services. However, many times the fault may be submerged in a strong background noise making the feature extraction process difficult. To solve this problem, this paper shows a new method for extracting features...

Failures in photovoltaic systems are a problem of great importance because they cause a deterioration in the production of electrical energy, among which is the dust on the surface of the photovoltaic system. This paper proposes a method to detect dust on the surface of a photovoltaic system in series configuration. In addition, shows by visual ins...

In this work, we evaluate the role of the ternary compound, Cd1–x Zn x S, as an electron-transport layer (ETL) in the n-i-p structure of antimony selenide (Sb2Se3) solar cells. The incorporation of Zn reduces the amount of Cd and contributes to improving the power-conversion efficiency of the solar cell. On the other hand, the n-i-p structure makes...

This paper describes an innovative method to evaluate energy access in any of size population by applying fuzzy logic. The obtained results allow ranking regions of Mexico according to their overall energy access. The regions were determined by the country’s political division (32 states). The results presented herein are in close correspondence wi...

In this paper, we present the performance of two solid-state dye sensitized solar cells (ssDSSCs) through SCAPS-1D simulation. The five layers of proposed structures are in solid-state. Recombination reactions and defects in materials were not considered to obtain maximum efficiency. The conjugated polymer BEHP-co-MEH PPV (poly{[2-[2′,5′-bis(2″-eth...

Currently, different types of materials are being used for solar cell applications, these vary according to the device’s requirements. In recent years, the main purposes in Dye Sensitized Solar Cells (DSSCs) study are, to obtain a longer useful lifetime and high conversion efficiencies, compared to existing devices in solar cell market. Consequentl...

In the present work, we simulate the J-V characteristic of a solar cell combination to evaluate the efficiency in an optical splitter system. Two different transparent conductive oxides (TCO) were used as splitters (ITO and SnO 2 :F). The spectral response of the TCOs was modeled according to Drude’s theory, using different concentration values. Th...

The Sb2(S1-x , Sex)3 compound has received considerable attention in photovoltaic applications due to its physical properties and for containing abundant non-toxic elements. However, solar cells based on this material present low efficiencies. In this work, we review some of the physical properties reported for the semiconductors Sb2S3, Sb2Se3 and...

The compound Sb2(S1-xSex)3 has recently attracted a great deal of attention from the scientific community for solar cell applications. However, Sb2(S1-xSex)3 inorganic solar cell efficiencies are still limited to values lower than 7%, further studies contributing to a better understanding of the limiting factors behind this technology being necessa...

CdS buffer layer plays an important role in thin film solar cells; as a result, a deep understanding of its physical properties and impact on solar cell performance is highly required. In this work, we report results on growth conditions of CdS thin films deposited by chemical bath method to be used as insulators in MIS structure instead of the tra...

This work reports the results obtained from applying a non-linear optimization method to the I-V characteristic of a GaAlP/GaAlAs/Ge solar cell. Modifications done to the Hooke–Jeeves method are reported. Later, this method was combined with a semi-analytical approach. This provides the starting conditions for the modified Hooke-Jeeves method. Our...

Transparent conducting oxides (TCOs) are evaluated as optical splitters in combined single thin film solar cells by using theoretical considerations. The optical properties of TCOs (transmittance and reflectance) are calculated using the Drude theory for free carriers. To improve the overall efficiency of the combined solar cells, the optical prope...

One important issue concerning kesterite solar cell technology is CdS/kesterite interface. As a result, routes to promote kesterite solar cell efficiency should be mainly focused on improving CdS/kesterite interface quality. In this work, results on a comparative study of Cu2Zn(SnGe)Se4 solar cells processed with different CdS buffer layers deposit...

In this work, the results about the properties of CdTe:Bi thin films grown by the Closed Space Vapor Transport (CSVT) method are presented. Two procedures were developed for the CdTe:Bi films deposition: (a) using powders with different Bi concentrations at a constant pressure in the CSVT chamber and (b) varying the total final Ar pressure in the C...

Se pretende validar, con dos ejemplos, el uso de la Transformada Wavelet en la detección de fallas mecánicas. El primero de ellos, un engrane con un diente roto es sometido a rotación en una máquina de pruebas, de donde se extraen las señales de vibración por medio de una red de acelerómetros. El último es una barra de aluminio con una fractura. La...

In thin film PV-module production the scribing of transparent conducting oxides, like fluorine doped tin oxides thin films, is performed with serial interconnection of solar cells without the use of external wires. This scribing is usually carried out with infrared and ultraviolet lasers, while for the other films that complete the solar cell struc...

It is intended to validate, two examples, the use of the wavelet transform to detect mechanical failures. The first, a gear with a broken tooth is subjected to a rotation testing machine, where the vibration signals are extracted by means of a network of accelerometers. The latter one is an aluminum bar with a fracture. The signals are processed an...

The most efficient thin film solar cells are based on Cu(In,Ga)(S,Se)2 (CIGSSe) and CdTe compounds, known as second generation polycrystalline thin films. The challenge of these materials is to reduce the cost per watt of solar energy conversion, but they are actually formed by expensive and/or scanty elements in the earth’s crust such as In, Ga, T...

Rogowski coils are simple, reliable and adaptable devices capable of measuring current. These coils operate within a large range of applications and environments, including microelectronics and industrial power systems. Rogowski coil and signal conditioning circuit built to make measurements of its response to electrical stimuli and perform a quali...

Las bobinas Rogowski son dispositivos sencillos, confiables y versátiles para hacer mediciones de corriente en una amplia gama de aplicaciones que van, desde dispositivos microelectrónicos hasta sistemas de alta potencia en instalaciones industriales. Se construyó una bobina de Rogowski y el circuito de acondicionamiento de la señal para poder hace...

This manuscript present the operation and construction of a glove that help deaf-mute communication by identifying the position of the fingers of the hand to translate the letters into words and send audio signals. Also we present an improve in the translator glove by adding a portable voice synthesizer and a microcontroller instead of using a comp...

An aspect which has hindered the development of ferroelectric memories is dielectric fatigue and to resolve this conducting oxides are promising candidates as an electrode material for lead zirconate titanate thin films. In this work ferroelectric films have been grown by pulsed laser deposition on ruthenium oxide electrodes. The phase distribution...

Transparent conducting oxides (TCOs) are evaluated as selective filters in thermophotovoltaic (TPV) devices using theoretical considerations. The TCOs plasma frequency and the optical properties in the near infrared are calculated using the Drude theory for free carriers. To improve the radiation transmission for energies higher than the band gap o...

The crystallization behaviour of thin films of composition Pb1.1ZrxTi1 − xO3, where x = 0.75 and 0.25, prepared by a sol-gel route, have been studied using grazing angle X-ray diffraction and transmission electron microscopy. The X-ray diffraction was done at different incident angles and revealed different structures as the penetration into the fi...

Large grain quaternary and pentenary chalcopyrite solid solutions with composition suitable for solar cell applications were obtained by means of the sintering technique. Electrical properties as a function of sintering processes (temperature and time of thermal treatments under controlled atmospheres) are discussed. The mobility values are related...

The photovoltaic effect in p-CuInSe2/n-CdS heterojunctions has been obtained by the evaporation of In-doped CdS thin film on a sintered CuInSe2 substrate. By suitable selection of sintering conditions it was possible to obtain large grain CuInSe2 polycrystals with controlled electrical properties for solar cells. An efficiency of about 6.9% was obt...

Low resistivity (10-1-1 ~2 cm) CdS thin films were deposited onto glass substrates by r.f. sputtering in an At-H2 atmosphere at substrate temperatures in the range 100-200 °C. These films are highly transparent in the wavelength region between 1.6 pm and the absorption edge of CdS (0.52 pm) and are therefore suitable to be used as windows in hetero...

Rectifying CuInSe 2 /Au contacts were prepared by a vacuum evaporation of Au on n‐type sintered CuInSe 2 samples in order to evaluate the electro‐optical properties of these devices. The low photovoltaic efficiency of the diode is due to the presence of the insulating layer, surface states, and high series resistance. A good quantum efficiency of a...

Abstract CuAlTe2, CuGaTe2 and CuInTe2 single crystals have been grown by the closed tube chemical vapor transport technique. The CuBTe2 -I2 system was considered and the optimization of thermodynamical growth parameters, necessary for avoiding the peritectoid decomposition and the formation of spurious species (i.e. liquid Te, solid TeI4 and liquid...

Single crystals of n-type ZnIn2S4 with a resistivity between 0.8 and 10 Ωcm were prepared by annealing them under a high manganese pressure. These crystals are viewed as potential windows in the preparation of heterojunction solar cells which have chalcopyrite compounds as p-type absorbers. The n-ZnIn2S4/p-CuInSe2 system has been characterized and...

CuInTe2 and CuGaTe2 single crystals have been grown by the closed tube chemical vapor transport technique. In order to define the growth conditions, a thermodynamical study of the CuInTe2/CuGaTe2-I2 system was undertaken. The behavior of all gaseous species, the formation of spurious phases, i.e. liquid Te and solid TeI4, and transport conditions w...

Large grain CuInSe2 chalcopyrite compounds were obtained by the sintering technique in a vacuum at a temperature of 780°C. The morphological study, using Scanning Electron Microscopy (SEM), revealed that the grain size is dependent on the sintering times. The effect of the pressing and sintering processes on typical electrical properties is analyze...

Characterization is reported of CuInSe//2 thin films which were deposited by flash evaporation to obtain a solar cell. In present system the coevaporation of selenium and indium is realized using separated sources in order to control the amount of these elements in the films. Ingots of the compound were prepared by the vacuum fusion of a stoichiome...

In this letter we report the characterization of CulnSe 2 thin films which were deposited by flash evaporation to obtain a solar cell. In our system the co-evaporation of selenium and indium is realized .using separated sources in order to control the amount of these elements in the films. Ingots of the compound were prepared by the vacuum fusion o...

The I–U electrical properties and electroluminescence characteristics of CuGa0.7In0.3Se2/ZnSe are explained by assuming the presence of surface states and a compensated layer in ZnSe. These heterojunctions are prepared by depositing the quaternary compound on an Al-doped ZnSe single crystal. The compensated layer shows up as a result of diffusion o...

ZnSe and ZnTe with their direct band gap of 2.6 and 2.2 eV, respectively, are interesting materials for visible light emitting devices. Unfortunately, ZnSe can be made only n-type, while ZnTe can be made only p-type, so that it is impossible to make homojunctions with such materials.