A5059422050- Perovskite Materials and Applications
- Gas Sensing Nanomaterials and Sensors
- Semiconductor materials and devices
- Security and Verification in Computing
- Advanced Malware Detection Techniques
- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Advanced Sensor and Energy Harvesting Materials
- Conducting polymers and applications
- Advanced Photocatalysis Techniques
- Quantum Dots Synthesis And Properties
- Advancements in Semiconductor Devices and Circuit Design
- Advanced battery technologies research
- Network Security and Intrusion Detection
- Iron oxide chemistry and applications
- Advanced Chemical Sensor Technologies
- Electrocatalysts for Energy Conversion
- Catalytic Processes in Materials Science
- Supercapacitor Materials and Fabrication
- Advancements in Battery Materials
- Crystal structures of chemical compounds
- Transition Metal Oxide Nanomaterials
- Chalcogenide Semiconductor Thin Films
- Electronic and Structural Properties of Oxides
- ZnO doping and properties
University of Cologne
2014-2024
Institute of Inorganic Chemistry of the Slovak Academy of Sciences
2024
Czech Academy of Sciences, Institute of Inorganic Chemistry
2022
Graz University of Technology
2019-2021
Infineon Technologies (Austria)
2017-2021
CBS International Business School
2020
Federal Office of Bundeswehr Equipment, Information Technology and In-Service Support
2015-2019
Atotech (Germany)
2018
CS Diagnostics
2017
Roche Pharma AG (Germany)
2017
Organic–inorganic hybrid lead halide perovskites have gained significant attention as light-harvesting materials in thin-film photovoltaics due to their exceptional optoelectronic properties and simple fabrication process. The power conversion efficiency of perovskite solar cells (PSCs) has surged beyond 25% a short time span. Their transition commercial market is “work progress” limited long-term operational stability the persisting environmental concern presence lead. Comprehensive...
Interplay of chemistry and nanotechnology has effectively substantiated the ever-expanding horizons materials chemistry, leading to a paradigm shift in (nano)materials synthesis. Current challenges chemically processed include efforts redesign synthetic procedures by using less hazardous starting materials, choosing milder reaction conditions, shortening time scale chemical transformations most importantly reduction energy requirements. In this context, successful substitution classical...
Multifunctional all-in-one biomaterial combining the therapeutic and regeneration functionalities for successive tumor therapy tissue is in high demand interdisciplinary research. In this study, a three-dimensional (3D) aerogel-based composite scaffold with dual-network structure generated through self-assembly photo-cross-linking combined properties of photothermally triggered controlled anticancer drug release photothermal cancer cell ablation was successfully fabricated. The fabrication...
Anode-free lithium batteries are a safer and lighter alternative, because they eliminate the traditional host anode for ions, thereby enhancing energy density reducing battery weight. However, challenges like dendritic growth electrolyte decomposition persist, affecting lifespan. Here, we present scalable technique using plasma enhanced chemical vapor deposition (PECVD) of tin(IV) precursor to directly deposit an artificial solid interface (SEI) on copper current collector. The obtained...
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...
Abstract Multifunctional aerogels, with intriguing micro‐morphologies and macroscopic sizes, are fabricated for the first time from silk fibroin (SF) biopolymer extracted Bombyx mori silkworm cocoon to optimize adsorption performances of heavy metal ions soluble organic pollutants. By a synergistic combination approaches such as surface‐modification SF polyethyleneimine (PEI) its hierarchical cryo‐assembly graphene oxide into various macrostructures, namely core‐shell, composite, Janus,...
Bismuth ferrite (BiFeO 3 , BFO) has found application in a wide range of fields owing to its fascinating multiferroic properties. Herein, the interplay between piezoelectric properties and morphology BFO nanostructures is exploited for vibrational energy harvesting by tailoring high aspect ratio surface area nanofiber morphology. This work demonstrates facile pathway fabrication high‐performance flexible nanogenerators, based on nanofibers, from cost‐effective energy‐efficient...
Due to the current energy crises, search for thermal management systems based on insulating porous materials has drawn a significant deal of attention. Herein, we demonstrated insulation and capabilities cuttlefish bone mimetic aerogels with hierarchically organized structures directly fabricated from surface-modified self-assembled silk fibroin (SF) biopolymer extracted Bombyx mori silkworm cocoon biomass; hereafter, developed referred as X-AeroSF. Exploiting creating an interpenetrating...
Photo‐rechargeable batteries represent a synergistic concept that integrates both energy harvesting and storage modalities based on dual‐functional materials. Electrospun vanadium oxide nanofibers (VNFs) seamlessly coated with conductive carbon (VNF‐C‐120) as dual‐action cathode materials for photo‐rechargeable lithium‐ion (LIBs) are reported. The deliver high discharge capacity of 160 mAh g −1 , which could be increased up to 184 (C rate 0.75) under light illumination confirmed the...
The present work investigates the NO2 sensing properties of acceptor-doped ferrite perovskite nanostructures. Sr-doped BiFeO3 nanostructures were synthesized by a salt precursor-based modified pechini method and characterized X-ray diffraction (XRD), scanning electron microscopy (SEM), photoelectron spectroscopy (XPS). materials drop coated to fabricate chemoresistive gas sensors, delivering maximum sensitivity 5.2 towards 2 ppm at 260 °C. recorded values response recovery time are 95 s 280...
Chemical vapor deposition (CVD) is a versatile technique for producing thin films and coatings of functional materials with diverse mechanical, electrochemical, electrical, tribological, optical properties. The CVD process is...
Abstract The most critical challenge faced in realizing a high efficiency photoelectrochemical water splitting process is the lack of suitable photoanodes enabling transfer four electrons involved complex oxygen evolution reaction (OER). Uranium oxides are efficient catalysts due to their wide range optical absorption ( E g ≈ 1.8–3.2 eV), photoconductivity, and multiple valence switching among uranium centers that improves charge propagation kinetics. Herein, thin films depleted oxide (U 3 O...
New heteroleptic rhenium(I) compounds, [fac-Re(I)(CO)3(L)] (e.g., L= tfb-dmpda, (N,N-(4,4,4-trifluorobut-1-en-3-on)-dimethyl propylene diamine)), containing anionic and neutral ligands act as efficient precursors to grow polycrystalline rhenium nitride (ReN) films by their vapor phase deposition at 600 °C. Deposition of ReN under an external magnetic field showed orientation effect with preferred growth crystallites along ⟨100⟩ direction. Rhenium complexes reported here unify high stability...