A5090861405- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Supercapacitor Materials and Fabrication
- Conducting polymers and applications
- Perovskite Materials and Applications
- Advancements in Battery Materials
- Gas Sensing Nanomaterials and Sensors
- Transition Metal Oxide Nanomaterials
- Advanced Chemical Physics Studies
- Advanced Battery Materials and Technologies
- Analytical Chemistry and Sensors
- Electrochemical Analysis and Applications
- Fullerene Chemistry and Applications
- Copper-based nanomaterials and applications
- Advanced battery technologies research
- Polyoxometalates: Synthesis and Applications
- Advanced Battery Technologies Research
- Advanced Sensor and Energy Harvesting Materials
- Carbon Nanotubes in Composites
- Pigment Synthesis and Properties
- Anodic Oxide Films and Nanostructures
- Organic Electronics and Photovoltaics
- Electrochemical sensors and biosensors
Universidad Nacional Autónoma de México
2016-2025
Instituto Tecnológico y de Energías Renovables
2015-2017
Rede de Química e Tecnologia
1997-2011
Autonomous University of San Luis Potosí
2003-2006
Universidad Americana de Morelos
2003
University of California, Santa Barbara
1985-1990
Hybrid halide perovskites that are currently intensively studied for photovoltaic applications, also present outstanding properties light emission. Here, we report on the preparation of bright solid state emitting diodes (LEDs) based a solution-processed hybrid lead perovskite (Pe). In particular, have utilized generally described with formula CH3NH3PbI(3-x)Cl(x) and exploited configuration without electron or hole blocking layer in addition to injecting layers. Compact TiO2 Spiro-OMeTAD...
The effect of semiconductor passivation on quantum-dot-sensitized solar cells (QDSCs) has been systematically characterized for CdS and CdS/ZnS. We have found that strongly depends the agent, obtaining an enhancement cell efficiency compounds containing amine thiol groups and, in contrast, a decrease performance passivating agents with acid groups. Passivation can induce change position TiO2 conduction band also recombination rate nature, reflected β parameter. Especially interesting is...
The unimolecular decay of energized size-selected carbon clusters (C+n, 5≤n≤100) is investigated. are produced in a laser-generated plasma on the surface graphite rod. Directly extracted cations that μs time scale probed double-focusing, reverse-geometry mass spectrometer. decomposition rates from metastable fraction measurements. We observe dramatic discontinuous increase rate constant as function cluster size around C+c0 (factor 5 to 10). Additionally, low constants, relative neighbors,...
Abstract Appropriate selection of electron buffer layer and understanding its impact on the photo‐generated charge transfer dynamics at interfaces are critical to enhance efficiency solar cells. By optimizing a multilayer composed CdS thin film deposited TiO 2 compact layer, we obtained power conversion (PCE) 5.47% for planar cell Sb (S x Se 1‐ ) 3 absorber. The PCE was significantly enhanced in photovoltaic parameters cells fabricated with single‐layer configuration: example, 3.99% 0.79%...
Room-temperature detection of acetone by TiO2/multiwall carbon nanotube (MWCNT) sol−gel composites is reported. We found a sizable increase in the resistance during adsorption, best performance being obtained on synthesized Ti-isopropoxide route and containing functionalized MWCNTs. Sensors based these were highly reproducible, with fast adsorption/desorption cycles at room temperature, showing linear response to concentration up 4000 ppm. In order better understand our experimental results,...
Hierarchical TiO<sub>2</sub>nanorods produced at low temperature are effective selective contacts for perovskite solar cells due to reduced recombination.
Research on hydrogen (H2) production has been intensively investigated due to the critical need for transitioning from fossil fuels cleaner energy sources. This study demonstrates a dual-purpose approach where water pollutant degradation and H2 occur simultaneously, eliminating sacrificial materials reducing costs. CuO-TiO2 calcined xerogels were employed in solutions containing NaOH acid black dye 1 (AB1). The CuO-TiO2/AB1/NaOH system successfully degraded recalcitrant pollutants while...
The excitation spectra and the structural properties of highly hydroxylated C60(OH)x fullerenes (so-called fullerenols) are analyzed by comparing optical absorption experiments on dilute fullerenol-water solutions with semiempirical density functional theory electronic structure calculations. spectrum fullerenol molecules 24–28 OH attached to carbon surface is characterized existence broad bands reduced intensities near ultraviolet region (below ∼500nm) together a complete absence...