A5016907629- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Chalcogenide Semiconductor Thin Films
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Conducting polymers and applications
- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Advanced Thermoelectric Materials and Devices
- Supercapacitor Materials and Fabrication
- Advanced Semiconductor Detectors and Materials
- Copper-based nanomaterials and applications
- Adsorption and Cooling Systems
- Algal biology and biofuel production
- Transition Metal Oxide Nanomaterials
- MXene and MAX Phase Materials
- Advanced Memory and Neural Computing
- Advanced Thermodynamics and Statistical Mechanics
- Gas Sensing Nanomaterials and Sensors
- Aerogels and thermal insulation
- Biocrusts and Microbial Ecology
- Advanced Thermodynamic Systems and Engines
- Analytical Chemistry and Sensors
- Refrigeration and Air Conditioning Technologies
- 2D Materials and Applications
- Organic Electronics and Photovoltaics
Universidad Autónoma de Nuevo León
2018-2024
Universidad Nacional Autónoma de México
2018-2019
Centro de Investigaciones en Optica
2015-2018
Instituto Tecnológico y de Energías Renovables
2018
Universidad de Guanajuato
2015-2017
The University of Texas at Dallas
2017
Recent developments in the physics of high-index resonant dielectric nanostructures suggest alternative mechanisms for subwavelength light control driven by Mie resonances with a strong magnetic response that can be employed design novel optical metasurfaces. Here we demonstrate metasurfaces based on nanoimprinted perovskite films optimized alloying organic cation part perovskites. We reveal such exhibit significant enhancement both linear and nonlinear photoluminescence (up to 70 times)...
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 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...
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...
In this work, we are reporting binary silver cobalt phosphate for high-performance supercapattery devices. The desired material was synthesized through two different techniques, single-step hydrothermal and two-step solid-state reaction. Surface morphology, crystallinity, elemental analysis, composition, porosity of the materials have been probed results scanning electron microscopy (SEM), transmission (TEM), energy dispersive X-ray (EDX), diffraction (XRD), Brunauer–Emmett–Teller (BET),...
The role of cesium in retarding perovskite crystallization for enhanced grain size and ultra-smooth surface giving an efficiency ∼19%.
In this paper, we outline the development of stoichiometric chalcostibite, CuSbS2 thin films, from a single bath by pulse electrodeposition for its application as photocathode in photoelectrochemical cells (PEC). The Cu/Sb precursor molar ratio deposition was varied to obtain films. optimized and dissolution potentials were −0.72 V −0.1 vs saturated calomel electrode, respectively. formation analyzed using different characterization tools. X-ray diffraction Raman results showed pure...
In this research, TiO2 nanotubes (NTs) were produced by electrochemical anodization of a Ti substrate where different NH4F wt.% in the electrolyte was added. NTs with diameter 65–90 nm and 3.3–4.9 µm length obtained sensitized binary cadmium chalcogenides nanoparticles, CdS CdSe, successive ionic layer adsorption reaction method (SILAR). Additionally, both anions S Se deposited onto Cd, labeled as CdSSe CdSeS, to evaluate effect deposition order anion from precursor solution form...
Multilayer structure (TiO2/CdS/NaYF4:Yb <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3+</sup> -Er /ZnS) as the photoelectrode was successfully studied, and increase of efficiency cell depended on NaYF4:Yb layer, which worked a scattering layer that is correlated with morphology. The irregular rod morphology varied concentration Yb (1, 5, 15% mol) an average size 3.9 μm length 1.13 width. In this article, impedance spectroscopy used to...
Herein, Sb 2 Se 3 thin films are obtained by the electrodeposition technique from a single bath on fluorine‐doped tin oxide (FTO) substrates. The conditions such as precursor concentration and applied potential, well annealing temperature, its influence structural, morphological, optical, photoelectrochemical properties analyzed. From cyclic voltammetry measurements, range of deposition potential is established sweep rate variation, an irreversible diffusion‐controlled process assumed. With...
In this study, low-temperature synthesis of a Nb2SnC non-MAX phase was carried out via solid-state reaction, and novel approach introduced to synthesize 2D Nb2CTx MXenes through selective etching Sn from using mild phosphoric acid. Our work provides valuable insights into the field their potential for energy storage applications. Various techniques, including XRD, SEM, TEM, EDS, XPS, were used characterize samples determine crystal structures chemical compositions. SEM images revealed...
The novel modified absorption heat pump (MAHP) with the H2O-LiBr working mixture for cogeneration applications is introduced. MAHP can simultaneously produce electric energy and revaluation. proposed system has particularity that it be powered by alternative thermal sources (such as solar energy, biomass, geothermal) or industrial waste heat, thus promoting production efficient use of clean energy. effects pressure ratio (RP), source supply temperature (TGH), revaluation gradient (GTL) are...