A5065473254- Quantum Dots Synthesis And Properties
- Advanced Photocatalysis Techniques
- Chalcogenide Semiconductor Thin Films
- TiO2 Photocatalysis and Solar Cells
- Catalytic Processes in Materials Science
- Advanced Semiconductor Detectors and Materials
- Transition Metal Oxide Nanomaterials
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
- Gas Sensing Nanomaterials and Sensors
- Copper-based nanomaterials and applications
- Semiconductor Quantum Structures and Devices
- Greenhouse Technology and Climate Control
- Photovoltaic Systems and Sustainability
- Chemical and Physical Properties of Materials
- Semiconductor materials and devices
- Light effects on plants
- Luminescence Properties of Advanced Materials
- Perovskite Materials and Applications
- Pigment Synthesis and Properties
- Advanced X-ray and CT Imaging
- Advanced Nanomaterials in Catalysis
Autonomous University of Queretaro
2016-2024
Center for Research and Advanced Studies of the National Polytechnic Institute
2016
Instituto Politécnico Nacional
2015-2016
Benemérita Universidad Autónoma de Puebla
2010-2011
Zirconium oxide (ZrO2) thin films were prepared by the sol-gel dip coating technique, in combination with annealing at different temperatures air atmosphere, final goal of studying water wettability surface. The effects on structural and optical properties ZrO2 investigated to check characteristics material. X-ray diffraction (XRD) patterns annealed 450 °C 550 show formation tetragonal phase, layers constituted nanoparticles average particle size 21 nm 25 nm, respectively. Fourier-transform...
TiO2-SiO2 thin films were created on Corning glass substrates using a simple method. Nine layers of SiO2 deposited; later, several TiO2 deposited, and their influence was studied. Raman spectroscopy, high resolution transmission electron spectroscopy (HRTEM), an X-ray diffractometer (XRD), ultraviolet-visible (UV-Vis), scanning microscope (SEM), atomic force microscopy (AFM) used to describe the sample's shape, size, composition, optical characteristics. Photocatalysis realized through...
Tetragonal ZrO2, synthesized by the sol–gel method and dip-coating technique, was found to be photocatalytically active for degradation of methylene blue. The ZrO2 thin films were characterized X-ray diffraction (XRD), Raman spectroscopy, Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), UV-vis spectroscopy. photocatalytic blue carried out with this material. We identified tetragonal phase in film at different annealing temperatures from 400 °C 550 °C. XRD...
The present study reports the synthesis of colloidal Cu 2 ZnSnS 4 (CZTS) nanocrystals (average size ~4–9 nm) by a simple and low cost hot-injection method. These form larger particles with sizes around 40 nm. Oleylamine (OLA) was used as both solvent nanocrystal stabilizer. effect time on structural, compositional, morphological, optical properties studied. As revealed XRD, Raman, TEM measurements all prepared samples are comprised kesterite wurtzite CZTS nanocrystals. phase contribution...
Thin films (TFs) of TiO2 and ZrO2 were prepared characterized to evaluate their structural optical (SO) properties and, later, test efficiency for the photocatalytic degradation (PD) methylene blue (MB) in aqueous solution. The X-ray diffraction patterns showed that TFs had an anatase crystalline structure, unlike TFs, which a tetragonal structure was verified by Raman spectroscopy. band gap (BG) energies, as calculated from UV-Vis spectroscopy diffuse reflectance spectroscopy, corresponded...
Amorphous CeO 2 thin films were deposited by a dip-coating method on Corning glass substrates and annealed for one hour at the temperatures (<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" id="M1"><mml:mi>T</mml:mi></mml:math>) of 250, 450, 550°C in air crystallization. The precursor solution was prepared dissolving cerium acetate methanol, lactic acid, glycerol, trimethylamine 55°C. X-ray diffraction (XRD) patterns showed cubic structure . From XRD data employing Scherrer formula,...
Erbium-doped cadmium selenide thin films grown on 7059 Corning glass by means of a chemical bath at 80 °C were prepared. Doping was performed adding an aqueous Er(NO3)33·H2O dilution to the CdSe growth solution. The volume Er doping solution varied obtain different concentration (x at%). Thus, in Cd1−xErxSe samples, x values obtained 0.0–7.8 at% interval. set CdSe:Er synthesized hexagonal wurtzite (WZ) crystalline phase are characterized lattice parameters (a and c) that increase until =...
Abstract Oleylamine‐capped tin disulfide nanoparticles were prepared by the hot‐injection method using (II) chloride (SnCl 2 .5H O) and thioacetamide as sulfur precursors, respectively. The as‐prepared rinsed with ethanol or toluene, their structural morphological assessed X‐ray diffraction, Raman spectroscopy, scanning electron microscopy transmission microscopy. obtained single‐phase SnS hexagonal structure. These self‐assembled to produce spherical 40‐50 nm nanostructures after...
ZnO can be used as a UV light emitter and could to excite phosphors produce white light.ZnO p-n junctions was reported with phosphorus doping [1].However is needed develop new easily p-doping methods for formation of in ZnO.We simple novel homemade system obtained p-type.ZnO n-type single crystal substrates were from MTI Corporation.The Arsenic introducing through arsenic diffusion mechanism.p-n have been formed single-crystal by As.The properties ZnO:As films studied x-ray diffraction...
Sessions C407pyramid, and vice versa.According to the X-ray powder diffraction data (HZG-4, Ni -filter, CuK α , diffracted beam; exposure time per frame, 15 s; scan step, 0.02°) single crystals study (CAD-4, AgK ω mode) there are an additional reflections related sp. gr.Р3.ZnO1 ZnO2 have a [Zn(1) 0.500 (Zn(2) 0.475(5) 0.025 )]Zn 0.015(5)(i) [(O(1) 0.490(6) 0.010 )O(2) ) [(Zn(1) 0.465(6) 0.035 )Zn(2) 0 .500]Zn 0.035(6)(i) (O(1) )(O(2) refined compositions, respectively.The compositions in...