A5056839481- Solar Thermal and Photovoltaic Systems
- Nanofluid Flow and Heat Transfer
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Quantum Dots Synthesis And Properties
- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Phase Change Materials Research
- Solar-Powered Water Purification Methods
- Photovoltaic System Optimization Techniques
- X-ray Diffraction in Crystallography
- Solid-state spectroscopy and crystallography
- Crystallization and Solubility Studies
- Heat Transfer Mechanisms
- Copper-based nanomaterials and applications
- Conducting polymers and applications
- Gas Sensing Nanomaterials and Sensors
- Pigment Synthesis and Properties
- Heat Transfer and Optimization
- Crystallography and molecular interactions
- Transition Metal Oxide Nanomaterials
- Thin-Film Transistor Technologies
- Enhanced Oil Recovery Techniques
- Organic Light-Emitting Diodes Research
- Covalent Organic Framework Applications
Universidad de Cádiz
2016-2025
Las Campanas Observatory
2024
Hospital Universitario Puerto Real
2012-2017
Studies of the organic–inorganic hybrid perovskite, CH<sub>3</sub>NH<sub>3</sub>PbI<sub>3</sub>, doped with Sn<sup>2+</sup>, Sr<sup>2+</sup>, Cd<sup>2+</sup>and Ca<sup>2+</sup>.
Meeting the growing energy demand with lowest environmental impact is one of greatest challenges facing our society. To this end, improving efficiency solar technologies a must. In work, nanofluids based on linear silicone-based fluid and Pd nanoparticles were prepared. The has been designed for use in concentrated power involving parabolic trough collector technology (CSP-PTC). showed high physical chemical stability. addition, Pd-based enhanced isobaric specific heat thermal conductivity...
Rapid degradation in humid environments is a major drawback of methylammonium lead iodide (CH3NH3PbI3), which the archetypical component perovskite solar cells. In this work, we have investigated aging and kinetics CH3NH3PbI3 films devices fabricated under controlled conditions as function relative humidity (RH) compared their performance with those that were prepared dry conditions. The monitored by optical absorption impedance spectroscopy measurements monochromatic illumination at two...
Abstract Solar cells, light emitting diodes, and X‐ray detectors based on perovskite materials often incorporate gold electrodes, either in direct or indirect contact with the compound. Chemical interactions between active layers contacts deteriorate operation induce degradation, being identification of chemical nature such interfacial structures an open question. reactivity semiconductor leads to reversible formation oxidized halide species explains generation vacancies vicinity interface....
This study explores the potential use of CuO nanofluids in a polydimethylsiloxane (PDMS) fluid for concentrating solar power (CSP) applications. The research addresses need environmentally friendly and efficient heat transfer fluids as alternatives to traditional options, which often pose environmental toxicity concerns. PDMS fluids, while offering benefits like high resistance low pour points, suffer from lower thermal conductivity capacity. addition nanoparticles aims enhance these...
This paper presents the synthesis of organic-inorganic hybrid perovskite CH3NH3Pb1-xCdxI3. The effect incorporating Cd(2+) or Pb(2+) on stability structure was analysed from a theoretical and experimental viewpoint. XRD results showed that tetragonal formed for x values up to 0.5, which seems indicate presence considerable amount is necessary stabilise structure. In turn, UV-Vis spectroscopy how led reduction in optical band gap 9% CH3NH3Pb0.5Cd0.5I3 with regard MAPbI3 Moreover, periodic-DFT...
Au nanofluids with enhanced thermal properties for use in CSP.
Methodology to prepare highly stable and improved nanofluids controlling the nanomaterial morphology.
Abstract Aiming for the introduction of stability requirements in nanofluids processing, an interface-based three-step method is proposed this work. It theory-based design framework that aims a minimum tension at solid-liquid interface by adjusting polar and dispersive components base fluid to meet those disperse nanomaterial. The was successfully tested preparation aqueous containing single-walled carbon nanotubes resulted be stable provide good thermal properties, i.e. conductivity...
We report about the remarkable changes in thermophysical properties of heat transfer fluid used concentrating solar power plants with parabolic-trough collectors (Dowtherm A, a mixture diphenyl oxide and biphenyl) by addition Au nanoplates mass fractions around 10−2 wt%. The resulting nanofluids are stable for weeks, their enhanced physical make them good candidates application. Particularly, 4.8·10−2 wt% nanoplates, specific increases 12.0 ± 1.2 % at 523 K thermal conductivity 24.9 6.1 373...
Abstract The removal of contaminants is an interesting topic in environmental research and for society nowadays. In this sense, perovskite materials have proven to be amazing photocatalysts. study, CsSnBr 3 was synthesized characterized using techniques such as x‐ray diffraction, Raman spectroscopy, photoelectron spectroscopy UV‐vis spectroscopy. A mixture cubic tetragonal crystalline phases found the sample, XPS revealed presence two oxidation states Sn, formation surface non‐stoichiometric...
Nanofluids are systems with several interesting heat transfer applications, but it can be a challenge to obtain highly stable suspensions. One way overcome this is create the appropriate conditions disperse nanomaterial in fluid. However, when fluid used non-polar organic oil, there complications due low polarity of solvent. Therefore, study introduces method synthesize TiO2 nanoparticles inside typically applications. Nanoparticles produced were characterized for their structural and...
Many key features in photovoltaic perovskites occur relatively long time scales and involve mixed compositions. This requires realistic but also numerically simple models. In this work we present a transferable classical force field to describe the hybrid perovskite MA