A5030798322- Solar Thermal and Photovoltaic Systems
- Nanofluid Flow and Heat Transfer
- TiO2 Photocatalysis and Solar Cells
- Solar-Powered Water Purification Methods
- Advanced Photocatalysis Techniques
- Perovskite Materials and Applications
- Chalcogenide Semiconductor Thin Films
- Phase Change Materials Research
- Quantum Dots Synthesis And Properties
- Photovoltaic System Optimization Techniques
- Transition Metal Oxide Nanomaterials
- Diamond and Carbon-based Materials Research
- Gas Sensing Nanomaterials and Sensors
- Pigment Synthesis and Properties
- Electron and X-Ray Spectroscopy Techniques
- Solid-state spectroscopy and crystallography
- Heat Transfer Mechanisms
- Heat Transfer and Optimization
- Nuclear materials and radiation effects
- Semiconductor materials and devices
- Copper-based nanomaterials and applications
- Power Transformer Diagnostics and Insulation
- Conducting polymers and applications
- Ion-surface interactions and analysis
- Enhanced Oil Recovery Techniques
Universidad de Cádiz
2016-2025
Indira Gandhi Centre for Atomic Research
2018-2024
Universidad de Sevilla
2018-2019
Homi Bhabha National Institute
2018
Hospital Universitario Puerto Real
2011-2017
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>.
A good correlation was obtained between the electronic properties of Cu-doped anatase TiO2 by virtue both physical chemistry characterization and theoretical calculations. Pure were synthesized. The composition, structural properties, band gap energy using several techniques. method synthesis used produces TiO2, XRD, XPS Raman spectroscopy indicate that Cu atoms are incorporated in structure substitution Ti atoms, generating a distortion oxygen vacancies. In turn, synthesized samples...
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...
Concentrating solar power is becoming one of options for producing energy to replace conventional polluting sources. However, improving the efficiency and reducing cost technologies based on this type make it more competitive still a work in progress. This study proposes replacing thermal oil used as heat transfer fluid absorber tubes parabolic trough collectors (PTCs) with nanofluids spherical molybdenum disulphide nanoparticles aim concentrating plants. The colloidal stability was verified...
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....
Nanofluids are considered as a new generation of heat transfer fluids since they exhibit thermophysical properties improvements compared with conventional fluids. The high thermal conductivity nanofluids and even the isobaric specific enhancements over liquids make these colloidal suspensions very attractive in many research areas, including solar energy. In this work, based on tungsten disulphide (WS2) nanosheets have been prepared from oil currently used fluid Concentrating Solar Power...
The significance of interfacial thermal resistance in the conductivity nanofluids is not well understood, part because absence measurements this quantity. Here, we study for metal–oil interest as heat transfer fluids concentrating solar power, using density functional theory and molecular dynamics simulations. Insights on role chemical interactions determining are revealed. results presented here showcase a general picture which stronger between species at interface, lower associated...
The flash combustion method was used to prepare LiF-doped TiO2 photocatalysts materials using glycine or urea as a fuel with different weight percentage of LiF. synthesized powders have been characterized by thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) energy dispersive spectrometer (EDX) analyzer, the specific surface area measurement performed BET. crystallization and phase transformation anatase-rutile for verified XRD. SEM micrographs these shows presence...
Abstract TiO 2 doping has been widely used in photocatalysis and photovoltaic cells to improve the performance of this semiconductor. This paper studies use copper as a dopant dye‐sensitized solar (DSSC), analysing effect on properties different concentrations incorporated into The copper‐doped semiconductor was characterized with several instrumental techniques, including X‐ray diffraction (XRD), inductively coupled plasma atomic emission spectroscopy (ICP‐AES), scanning transmission...
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...