A5100759002- Semiconductor materials and devices
- Magnetic Properties and Synthesis of Ferrites
- ZnO doping and properties
- Iron oxide chemistry and applications
- Characterization and Applications of Magnetic Nanoparticles
- Magnetic properties of thin films
- Photonic Crystals and Applications
- Photonic and Optical Devices
- Electronic and Structural Properties of Oxides
- Optical Coatings and Gratings
- Theoretical and Computational Physics
- Plasmonic and Surface Plasmon Research
- Plasma Diagnostics and Applications
- Nanomaterials for catalytic reactions
- Nanoparticle-Based Drug Delivery
- Metal and Thin Film Mechanics
- Copper-based nanomaterials and applications
- Clay minerals and soil interactions
- Advanced Photocatalysis Techniques
- Photorefractive and Nonlinear Optics
- Copper Interconnects and Reliability
- Geomagnetism and Paleomagnetism Studies
- Catalytic Processes in Materials Science
- E-Learning and Knowledge Management
- Gold and Silver Nanoparticles Synthesis and Applications
University of Alicante
2025
Center for Scientific Research and Higher Education at Ensenada
2025
Consejo Nacional de Humanidades, Ciencias y Tecnologías
2016-2022
Universidade Federal de São Carlos
2021
Universidade de São Paulo
2021
Universidad Nacional Autónoma de México
1997-2020
Universidade Federal do Acre
2017
Universidad del Valle
2006-2015
Thinfilm (Sweden)
2014
University of Colorado Boulder
2014
Phosphors of Bi4Ge3O12:Eu3+ were obtained by using the polymeric precursor route. After confirming Eu incorporated into Bi4Ge3O12 lattice, we analyzed magnetic behavior in systems with 0%, 2%, 5%, and 10%. The magnetization vs field measurements evidenced ferromagnetism all samples, different saturation values. In pristine structure, is directly related to Bi vacancies, where neighbor O atoms induce spin polarization. ferromagnetic characteristics are enhanced 2% content because take on...
Abstract Beta gallium oxide ( β -Ga 2 O 3 ) microstructures composed of ∼50 nm nanoparticles were synthesized by the hydrothermal method. Using Tauc plot method a value ∼4.9 eV was obtained for optical band gap . TEM and XRD analyses revealed high crystallinity -phase nanostructures. Since there are few publications photocatalytic properties results contribute to better understanding effect this material on toxic dye red amaranth. Moreover, it is shown that very efficient photocatalyst...
Particle shape and medium chirality are two key features recently used to control anisotropic colloidal self-assembly dynamics in liquid crystals. Here, we study magnetically responsive gourd-shaped particles dispersed cholesteric crystals with periodicity comparable or smaller than the particle's dimensions. Using magnetic manipulation optical tweezers, which allow one position colloids near confining walls, measured elastic repulsive interactions of these surfaces found that...
This is a report of study the nonlinear optical properties samples based on multiple Al2O3/ZnO bilayers fabricated by atomic layer deposition (ALD) in silica. The multi-layer configuration for consists alternated layers constant thickness Al2O3 (Δx) and ZnO (Δy) nanolaminates with total ∼ 500 nm. physical were characterized means TEM, spectrophotometry variable angle spectroscopic ellipsometry. absorptive refractive contributions to nonlinearity studied z-scan technique using 100 fs at 800...
To determine the gas temperature of an alternating current (ac) (50 kHz) arc discharge at atmospheric pressure in air, a Mach–Zehnder type interferometer was built, utilizing He-Ne <tex xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">$(lambda=6328 hboxAA)$</tex> laser source with vertical polarization and power 5 mW. Upon introducing into one arms, displacement interference fringes takes place respect to its position without discharge. Keeping mind...
Ferrofluids based on the Co <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">1-x</sub> ZnxFe xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> O xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> magnetic nanoparticles are considered as soft materials with interesting technological applications in nanotechnology when ferrofluids placed an external field. The morphological characterization of was obtained by means high-resolution transmission...
Recently, different biomedical applications of aluminum oxide (Al2O3) and zinc (ZnO) have been studied, they displayed good biocompatible behavior. For this reason, study explores nanolaminates [Al2O3/ZnO]n obtained by atomic layer deposition (ALD) on silicon (100) 316L stainless steel substrates with bilayer periods: n = 1, 2, 5, 10. The intention is to correlate the structure, chemical bonds, morphology, electrochemical properties ZnO Al2O3 single layers their cytotoxic biocompatibility...
This research investigates the improvements of ozone (O3) annealing on optical and etching characteristics TiO2/Al2O3 multilayer band-pass filters designed for potential optoelectronic applications. The were fabricated using atomic layer deposition (ALD), their performance was systematically analyzed after addition O3 at moderate temperatures (up to 300 °C). Results reveal that improves transmittance multilayers by approximately 40% without significant spectral changes (∼6 nm). observed...
The design of optoelectronic devices made with ZnO superlattices requires the knowledge refractive index, which currently can be done only for films thicker than 30 nm. In this work, we present an effective medium approach to determine index layers as thin 2 was implemented by determining ranging from nm 20 using spectroscopic ellipsometry measurements in multilayers. For a precise control morphology and thickness, were fabricated atomic layer deposition (ALD) alternating thick Al2O3 ZnO,...
Ferrofluids based on magnetic Co0.25Zn0.75Fe2O4 ferrite nanoparticles were prepared by co-precipitation method from aqueous salt solutions of Co (II), ZnSO4, and Fe (III) in an alkaline medium. placed external field show properties that make them interesting as magneto-controllable soft photonic crystals. Morphological structural characterizations the samples obtained Scanning Electron Microscopy Transmission studies. Magnetic investigated with aid a vibrating sample magnetometer at room...