A5089824217- Perovskite Materials and Applications
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Conducting polymers and applications
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Solid-state spectroscopy and crystallography
- Luminescence Properties of Advanced Materials
- Microwave Dielectric Ceramics Synthesis
- Power Quality and Harmonics
- Catalytic Processes in Materials Science
- Composite Material Mechanics
- Mechanical Behavior of Composites
- Color Science and Applications
- Advanced Fluorescence Microscopy Techniques
- Organic Electronics and Photovoltaics
- Optical properties and cooling technologies in crystalline materials
- Electrochemical sensors and biosensors
- Chemical Synthesis and Reactions
- solar cell performance optimization
- Solar Thermal and Photovoltaic Systems
- Energy Load and Power Forecasting
- International Relations in Latin America
- Thermal Expansion and Ionic Conductivity
- Numerical methods in engineering
Universidad Autónoma de Zacatecas "Francisco García Salinas"
2011-2025
Centro de Investigaciones en Optica
2014-2017
Universidad de Guanajuato
2014
University of Liverpool
2006
We for the first time report incorporation of cobalt into a mesoporous TiO2 electrode application in perovskite solar cells (PSCs). The Co-doped PSC exhibits excellent optoelectronic properties; we explain improvements by passivation electronic trap or sub-band-gap states arising due to oxygen vacancies pristine TiO2, enabling faster electron transport and collection. A simple postannealing treatment is used prepare cobalt-doped electrode; UV-visible spectroscopy, X-ray photoemission space...
The performance of perovskite solar cell (PSC) is highly sensitive to deposition conditions, the substrate, humidity, and efficiency solvent extraction. However, physical mechanism involved in observed changes with different conditions has not been elucidated yet. In this work, PSCs were fabricated by antisolvent (AD) recently proposed air-extraction (AAD) process. Impedance analysis J–V curve fitting used analyze photogeneration, charge transportation, recombination, leakage properties...
The procedure employed for the sensitization of mesoporous photoanodes affects strongly final performance sensitized devices, especially when semiconductor quantum dots and rods are used as sensitizers. In this work effect three different sensitizing methods in cell was analyzed. TiO2 films were with CdS QDs grown by successive ionic layer adsorption reaction, SILAR, CdSe deposited electrophoretic pipetting methods. Several configurations sensitizers combinations tested. 4% photoconversion...
Theoretical studies have identified cesium titanium bromide (Cs2TiBr6), a vacancy-ordered double perovskite, as promising lead-free and earth-abundant candidate to replace Pb-based perovskites in photovoltaics. Our research is focused on overcoming the limitations associated with current Cs2TiBr6 syntheses, which often involve high-vacuum high-temperature evaporation techniques, high-energy milling, or intricate multistep solution processes conducted under an inert atmosphere, constraints...
While 2D/3D layered perovskites have been the object of comprehensive research principally focused on increasing long-term stability observed in 3D perovskites, significant opportunities still exist concerning application different kinds cations outside sphere primary amines, which are most usually applied. Our results demonstrate that materials and solar cells prepared with dipropylammonium iodide (DipI), a bulky secondary ammonium cation small size, lead to obtaining not only efficient...
High defect concentrations at the interfaces are basis of charge extraction losses and instability in perovskite solar cells. Surface engineering with organic cations is a common practice to solve this issue. However, full implications counteranions these for device functioning often neglected. In work, we used 4-fluorophenethylammonium cation varying halide modification both methylammonium-free Pb-based n-i-p devices, observing significant differences among iodide, bromide, chloride. The...
A multilayered semiconductor sensitizer structure composed of three differently sized CdSe quantum rods (QRs), labeled as Q530, Q575, Q590, were prepared and deposited on the surface mesoporous TiO2 nanoparticles by electrophoretic deposition (EPD) for photovoltaic applications. By varying arrangement layers well time EPD, photoconversion efficiency was improved from 2.0% with single layer QRs (TiO2/Q590/ZnS) to 2.9% multilayers (TiO2/Q590Q575/ZnS). The optimal EPD shorter structures. effect...
We report the incorporation of all-inorganic highly stable CsPbX3 (X = I, Br) based perovskite nanoparticles (NPs) on top a bulk CH3NH3PbI3perovskite thin film. This design utilizes photogeneration ability NPs and also improves interfacial charge transport which happens to be critical factor in deciding photovoltaic performance any solar cell device. With variation lead halide (PbX2, X Br, Cl) content, synthesized shows tunable band-edge position fluorescence characteristics. The interaction...
In this work, the electrical properties of different triple-cation compositions with formula Cs0.05FA1–XMAXPb(I1–XBrX)3 have been analyzed using electrochemical impedance spectroscopy. The perovskite solar cells were subjected to ambient conditions compare their results in terms degradation. Their morphology, optical properties, and photovoltaic performance characterized. We causes effects degradation mechanisms on devices. Electrochemical processes such as ion movement, a combination...
CsPbBr3 perovskite nanocrystals (PNCs) have been synthesized using the hot injection method. The PNCs exhibit a high photoluminescence quantum yield (PLQY) of 73%. A comprehensive study UV light interaction with was performed. SEM images, spectra, x-ray Diffraction and PLQY measurements were obtained for different time exposure. exposure to modifies crystal size (from 10 × nm 12 95 nm) morphology (change from nanocubic nanorods form). XRD spectra show change tetragonal cubic crystalline...
We investigate the effect of incorporation a material with efficient electron transport into Hybrid Quantum Dot Sensitized Solar Cell (HyQDSSC).
The power factor in electrical systems is of paramount importance because the influence on economic cost energy consumption as well quality requested by grid. Low affects both consumers and suppliers due to an increase current requirements for installation, bigger sizing industrial equipment, conductor wiring that can sustain higher currents, additional voltage regulators equipment. In this work, we present a technique predicting variations three phase systems, using machine learning...