A5033208692- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Supercapacitor Materials and Fabrication
- Multiferroics and related materials
- Conducting polymers and applications
- Quantum Dots Synthesis And Properties
- Transition Metal Oxide Nanomaterials
- Advanced Sensor and Energy Harvesting Materials
- Advanced Photocatalysis Techniques
- CO2 Reduction Techniques and Catalysts
- Advanced Battery Materials and Technologies
- Nanoparticles: synthesis and applications
- Electronic and Structural Properties of Oxides
- Electrospun Nanofibers in Biomedical Applications
- Analytical Chemistry and Sensors
- TiO2 Photocatalysis and Solar Cells
- Carbon dioxide utilization in catalysis
- Advanced Nanomaterials in Catalysis
- Catalytic Processes in Materials Science
- Innovative Energy Harvesting Technologies
- ZnO doping and properties
- Chalcogenide Semiconductor Thin Films
- Metal-Organic Frameworks: Synthesis and Applications
- Advancements in Battery Materials
Solstício Energia (Brazil)
2023
University of Cologne
2018-2021
Abstract Facile electron injection and extraction are two key attributes desired in transporting layers to enhance the efficiency of planar perovskite solar cells. Herein it is demonstrated that incorporation alkali metal dopants mesoporous TiO 2 can effectively modulate electronic conductivity improve charge process by counterbalancing oxygen vacancies acting as nonradiative recombination centers. Moreover, sulfate bridges (SO 4 2− ) grafted on surface K‐doped titania provide a seamless...
Lanthanum ferrite nanofibers were electrospun from a chemical sol and calcined at 600 °C to obtain single-phase LaFeO3 (LFO) perovskite. High-resolution transmission electron microscopy in conjunction with 3D tomographic analysis confirmed an interwoven network of hollow porous (surface) LFO nanofibers. Owing their high surface area p-type behavior, the nanofiber meshes showed chemoselectivity toward reducing toxic gases (SO2, H2S) that could be reproducibly detected very low concentrations...
Transparent and pinhole free hole‐blocking layers such as TiO 2 grown at low temperatures by scalable processes are necessary to reduce production costs thus enabling commercialization of perovskite solar cells. Here, the authors compare transport properties compact spray pyrolysis from commonly used titanium diisopropoxide bisacetylacetonate ([Ti(OPr i ) (acac) ]) precursor films TiCl 4 . Spray provides insights into interdependence chemistry electron their influence on performance X‐ray...
The catalytic activity of the Co-POM@MIL-101(Cr) composite in solvent-free cycloaddition CO<sub>2</sub> to epoxides and esterification acetic acid with alcohols is due an outer-sphere electron transfer mechanism using Co(<sc>iii</sc>)/Co(<sc>ii</sc>) redox pair.
We demonstrate the effect of femtosecond laser structuring titanium substrates to increase absorption, photoconversion, and overall photoelectrochemical water splitting (PEC) performance compared pristine metal substrates, independent any additional top coat layers. The influence ultra short pulse patterning on PEC efficiency is investigated toward spectroscopic (UV‐Vis), microscopic (SEM), crystallographic (XRD), compositional (XPS) properties. beneficial a periodically patterned substrate...
Abstract Intensive and overuse of antibiotics during the last years has triggered a distinct rise in antibiotic resistance worldwide. In addition to newly developed antimicrobials, there is high demand for alternative treatment options against persistent bacterial infections. The biocidal impact metal ions like copper (Cu 2+ ), silver (Ag + zinc (Zn also known as oligodynamic effect been used ages kill or inhibit growth microorganisms employ long‐term prevention strategies their biological...
Nanocomposite films of rGO/MFeO3 (M = Bi, La) nanofibers were grown by matrix-assisted pulsed laser evaporation frozen target dispersions containing GO platelets and MFeO3 nanofibers. Electron microscopy investigations confirmed the successful fabrication electrospinning Part broken into shorter units, spherical nanoparticles formed during processing. Numerical simulations performed in order to estimate maximum temperature values reached irradiation. X-ray diffraction analyses revealed...
Green Horizons: Advancing Sustainable Perovskite Solar Technologies Through Innovative Halide Chemistry and Eco-Friendly Production PracticesSenol Öz a, Tim Ludwig Christoph Bohr Robert Frohnhoven Shahaboddin Resalati b, Amani Maalouf Tobechi Okoroafor ba Solaveni GmbH, Germanyb Oxford Brookes University, OX3 0BP, United KingdomMaterials for Development Conference (MATSUS)Proceedings of MATSUS Spring 2024 (MATSUS24)#SusPer - Sustainability halide perovskitesBarcelona, Spain, March 4th...