A5002592256- TiO2 Photocatalysis and Solar Cells
- Advanced Photocatalysis Techniques
- Silicon Nanostructures and Photoluminescence
- Semiconductor materials and devices
- Polymer Nanocomposites and Properties
- Nanowire Synthesis and Applications
- Graphene and Nanomaterials Applications
- Advanced Polymer Synthesis and Characterization
- Electrospun Nanofibers in Biomedical Applications
- ZnO doping and properties
- Advanced Nanomaterials in Catalysis
- Material Dynamics and Properties
- Advanced Sensor and Energy Harvesting Materials
- Seed Germination and Physiology
- Biosensors and Analytical Detection
- Block Copolymer Self-Assembly
- Advanced biosensing and bioanalysis techniques
- Semiconductor materials and interfaces
- Copper-based nanomaterials and applications
- Metal and Thin Film Mechanics
- Membrane Separation Technologies
- Polymer crystallization and properties
- MXene and MAX Phase Materials
- Electronic and Structural Properties of Oxides
- Diamond and Carbon-based Materials Research
Adam Mickiewicz University in Poznań
2014-2025
Poznań University of Technology
2016
In this study, we explore the potential of 1D ZnO–Au nanocomposites as innovative label-free photoluminescence (PL) immunosensors for rapidly detecting Listeria monocytogenes, a significant concern in food safety. We synthesized ZnO nanorods (ZnO_NR) and nanowires (ZnO_NW), followed by Au deposition to create ZnO_NR/Au ZnO_NW/Au nanocomposites. Our analyses, including SEM, TEM, Raman spectroscopy, (PL), revealed distinct structural optical properties these nanocomposites, especially noting...
Structural, optical, and mechanical properties of Al2O3/TiO2 nanolaminates fabricated by atomic layer deposition (ALD) were investigated. We performed transmission electron microscopy (TEM), X-ray diffraction (XRD), reflectivity (XRR), energy dispersive spectroscopy (EDX), ellipsometry, UV–vis spectroscopy, photoluminescence (PL) nanointendation to characterize the nanolaminates. The main structural, parameters (thickness, grain size, refractive index, extinction coefficient, band gap,...
The structural, optical, and photoluminescence properties of porous silicon (PSi)/titanium dioxide (TiO2) nanostructures were investigated. PSi structures consisting macro- mesoporous layers fabricated by metal-assisted chemical etching, then TiO2 was introduced inside the matrix using atomic layer deposition technique. We performed scanning electron microscopy, transmission microscopy (TEM), X-ray diffraction, energy dispersive spectroscopy, Raman ellipsometry, (PL) spectroscopy to...
The mechanical and optical properties of Si TiO<sub>2</sub>–Si nanopillars (NPl) were investigated.
In the current research, a porous silicon/zinc oxide (PSi/ZnO) nanocomposite produced by combination of metal-assisted chemical etching (MACE) and atomic layer deposition (ALD) methods is presented. The applicability composite for biophotonics (optical biosensing) was investigated. To characterize structural optical properties PSi/ZnO nanocomposites, several studies were performed: scanning transmission electron microscopy (SEM/TEM), X-ray diffraction (XRD), photoelectron spectroscopy (XPS),...
This work demonstrates the utilization of MXenes as a hole transport interfacial layer for performance and stability improvement in regular device (n–i–p) structures.
Traditional consolidants commonly used for waterlogged wood conservation often present long-term drawbacks, prompting research into new and reliable alternatives. Reducing reliance on fossil-based chemicals that are harmful to people, the environment, climate is a growing trend, sustainable materials now being explored as alternative conserving archaeological wood. Among these bio-based products, sodium alginate, natural polysaccharide, has shown promising potential. This study aimed...
The use of photocatalytic hydrogen evolution depends on the availability an efficient photocatalyst. This experiment aimed to create a type-II heterojunction between silicon nanowires and titanium dioxide bridged by biomimetic polydopamine layer for production. delivered adhesion, mechanical durability, outstanding wettability, effective transfer photogenerated charge carriers. Electron microscopy provided insight into morphology integration nanocoatings, while X-ray photoelectron...
The co-catalytic ability of surface groups in MXene renders MXene-based composites efficient photocatalysts for organic dye photodegradation. In this study, we introduce a novel approach combining highly-regular laser-induced periodic Si structures (Si nanoripples - SiNR) with and TiO2, deposited through atomic layer deposition (ALD), to achieve stable, repeatable, highly photocatalytic materials. ternary system, SiNR/MXene/TiO2, exhibits high light absorption across the entire spectrum....
Abstract Record laboratory efficiencies of dye‐sensitized solar cells have been recently reported using an alkoxysilyl‐anchor dye, ADEKA‐1 (over 14 %). In this work we use time‐resolved techniques to study the impact key preparation factors (dye synthesis route, addition co‐adsorbent, cobalt‐based electrolytes different redox potential, creation insulating Al 2 O 3 layers and molecule capping passivation electrode) on partial charge separation in cells. We observed that unwanted fast...
The dynamics of electron transfer at the dye–titania and titania–electrolyte interfaces is investigated in two post-sensitization processes: (i) atomic layer deposition blocking alumina coating (ii) hierarchical molecular multicapping. To measure dynamics, time-resolved spectroscopic methods (femtosecond transient absorption on time scale from femtoseconds to nanoseconds electrochemical impedance spectroscopy milliseconds seconds) are applied complete dye-sensitized solar cells with...
The unique combination of optical, chemical, and structural properties one-dimensional zinc oxide (1D ZnO) makes it one the most attractive materials in a wide range research applications. In present study, 1D ZnO nanomaterials were fabricated using two independent methods: electrospinning atomic layer deposition (ALD). technique was used to produce electrospun fibers consisting four types polymers: polylactic acid (PLLA), polyvinylidene fluoride (PVDF), polyvinyl alcohol (PVA), polyamide 6...