A5013855238- Luminescence Properties of Advanced Materials
- Glass properties and applications
- Radiation Detection and Scintillator Technologies
- Lanthanide and Transition Metal Complexes
- Semiconductor materials and devices
- ZnO doping and properties
- Phase-change materials and chalcogenides
- Gas Sensing Nanomaterials and Sensors
- Solid State Laser Technologies
- Luminescence and Fluorescent Materials
- Ga2O3 and related materials
- Nuclear materials and radiation effects
- Perovskite Materials and Applications
- Synthesis and Properties of Aromatic Compounds
- Metal-Organic Frameworks: Synthesis and Applications
- Ion-surface interactions and analysis
- Acoustic Wave Resonator Technologies
- Synthesis and characterization of novel inorganic/organometallic compounds
- Copper-based nanomaterials and applications
- Ferroelectric and Piezoelectric Materials
- Silicone and Siloxane Chemistry
- Microplastics and Plastic Pollution
- Magnetism in coordination complexes
- Bryophyte Studies and Records
- Green IT and Sustainability
Benemérita Universidad Autónoma de Puebla
2019-2023
Instituto Politécnico Nacional
2007-2019
Center for Research and Advanced Studies of the National Polytechnic Institute
2013-2017
Universidad Nacional Autónoma de México
1994-2016
Instituto de Física del Sur
2015
Sonora Institute of Technology
2015
Universidad Autónoma Monterrey
2014
Pontifical Catholic University of Rio de Janeiro
1995
The luminescence and structural properties of layered Y2O3:Eu3+ phosphors, synthesized by a simple evaporation method followed thermal annealing at temperatures up to 1100 °C, are described for europium doping concentration 4.3 at. % as determined energy dispersive spectroscopy. intense emission spectra these samples associated with the characteristic intra-electronic levels Eu3+ ion transitions. dominant peak is 611 nm, corresponding 5D0 7F2 transition, excitation λexc = 245 nm. A...
The optical, structural, and electrical characteristics of aluminum oxide thin films deposited by pulsed ultrasonic sprayed pyrolysis are reported. on crystalline silicon at temperatures from 400to550°C using a chemical solution acetylacetonate, as source aluminum, N, N-dimethylformamide, solvent. A H2O–NH4OH mist is supplied simultaneously during deposition to improve the films’ properties. results showed that properties depended strongly number pulses used substrate temperature. thickness...
Aluminum oxide films doped with Tb, Ce and Eu have been deposited by spray pyrolysis using acetylacetonates as precursors. The photoluminescence emission for these double layer stacks is reported. Tb present the emissions associated radiative transitions among electronic energy states of triple ionized atom, being dominant 5D0 to 7F2 at ∼ 612.5 nm Eu+3 ion, 5D4 7F5 ∼547.5 Tb+3 ion. In case films, there are two broad bands also 5d 4f this ion at∼400 510 nm. These low surface roughness lower...
The synthesis of Y2O3: Er3+/Yb3+/Li+ phosphors by simple evaporation technique and it is incorporation into polymethyl methacrylate films spin coating are reported. These exhibit luminescent properties when they exited under continuous infrared light 980 nm wavelength. luminescence spectra show peaks for the green red upconversion (UC) emissions near (1.534 μm) downconversion (DC) emission corresponding to inter electronic energy transitions Er3+ ions. effect Yb3+ Li+ co-doping was found...
Luminescent properties of Al2O3:Eu3+ powder and polyethylene therephtalate (PET) films with this incorporated in them are reported. Powders were synthesized by simple evaporation method the polymeric thin made spray pyrolysis technique using recycled PET as raw material. The phosphors characterized cathode photoluminescence techniques; both cases, luminescence spectra peaks observed associated inter level transitions within electronic energy states Eu3+ ions (5D0 to 7F1, 7F2, 7F3 y 7F4,...