A5079793705- Gold and Silver Nanoparticles Synthesis and Applications
- Plasmonic and Surface Plasmon Research
- Near-Field Optical Microscopy
- Thin-Film Transistor Technologies
- Spectroscopy and Quantum Chemical Studies
- GaN-based semiconductor devices and materials
- Advanced Fluorescence Microscopy Techniques
- Optical Coatings and Gratings
- Silicon and Solar Cell Technologies
- Integrated Circuits and Semiconductor Failure Analysis
- Perovskite Materials and Applications
- Quantum Information and Cryptography
- Nanofabrication and Lithography Techniques
- Nanoparticles: synthesis and applications
- Silicon Nanostructures and Photoluminescence
- Electron and X-Ray Spectroscopy Techniques
- Strong Light-Matter Interactions
- Semiconductor Lasers and Optical Devices
- Chalcogenide Semiconductor Thin Films
- Advanced Biosensing Techniques and Applications
- Magnetic properties of thin films
- Catholicism, Bioethics, Media, Education
- Chemical Reactions and Mechanisms
- Orbital Angular Momentum in Optics
- Fluorine in Organic Chemistry
University of Warsaw
2021-2024
Laguna Research
2022
Rejonowe Przedsiębiorstwo Wodociągów i Kanalizacji W Sosnowcu (Poland)
2022
Adama Science and Technology University
2022
Adam Mickiewicz University in Poznań
2022
University of Rome Tor Vergata
2019-2021
AGH University of Krakow
2017-2019
Wrocław University of Science and Technology
2015-2019
Metallic nanoparticles are used to improve solar cell efficiency due plasmon mediated photo-voltaic effect. We present various channels of this phenomenon in semiconductor cells with p−n junction and chemical-type exciton photovoltaic mechanism. Besides previously known by strengthening sun light absorption metalized we have described the influence plasmonic onto internal electricity cells. The latter case analyze on example hybridized perovskite regarded as most promising III-rd generation....
We demonstrate that the direct application of numerical packets like Comsol to plasmonic effect in solar cells metallically modified nano-scale may be strongly inaccurate if quantum corrections are neglected. The near-field coupling surface plasmons metallic nanoparticles deposited on top a cell with band electrons semiconductor substrate enhances damping components, which is not accounted for standard using Drude type dielectric function metal (taken from measurements bulk or thin layers)...
In strongly coupled light matter systems electronic energy levels become inextricably linked to local electromagnetic field modes. Hybridization of these states opens new relaxation pathways in the system, particularly important for plasmon decay into single electron states, known as hot carriers. We investigate influence coupling strength between a plasmonic resonator and molecule on carrier generation using first principles calculations. An atomistic approach allows capture changes...
In lensless microscopy, spatial resolution is usually provided by the pixel density of current digital cameras, which are reaching a hard-to-surpass size / limit over 1 µm. As an alternative, dependence resolving power can be moved from detector to light sources, offering new kind microscopy setups. The use continuously scaled-down Light-Emitting Diode (LED) arrays scan sample allows resolutions on order LED size, giving rise compact and low-cost microscopes without mechanical scanners or...
Nanoparticles—regularly patterned or randomly dispersed—are a key ingredient for emerging technologies in photonics. Of particular interest are scattering and field enhancement effects of metal nanoparticles energy harvesting converting systems. An often neglected aspect the modeling light interaction at ultimate nanoscale beyond classical electrodynamics. Those arise from microscopic electron dynamics confined systems, accelerated motion plasmon oscillation quantum nature free...
Surface plasmons in metallic nanostructures including metallically nanomodified solar cells are conventionally studied and modeled by application of the Mie approach to or finite element solution differential Maxwell equations with imposed boundary material constraints (e.g., upon commercial COMSOL software system). Both approaches essentially classical ones neglect quantum particularities related plasmon excitations components. We demonstrate that these effects crucial importance especially...
By selecting appropriately the orientation of an asymmetric molecule in a strongly coupled plasmon–molecule system, coupling strength can be significantly increased, modifying energy spectrum and spatial distribution hot charge carriers.
The physical laws of diffraction limit the spatial resolution optical systems. In contrary to most superresolution microscopy approaches used today, in our novel idea we are aiming overcome this by developing a spatially resolved illumination source based on semiconductor nanoscale light emitting diode (nanoLED) arrays with individual pixel control. We present and discuss results simulations performed for such nanoLED emitter analyze theoretical limits approach. As possible designs study GaN...
Anomalous Hall effect (AHE) plays important role in the rapidly developing field of antiferromagnetic spintronics. It has been recently discussed that it can be a feature not only uncompensated magnetic systems but also altermagnetic materials. Hexagonal MnTe belongs to this appealing group compounds exhibiting AHE and is commonly perceived as magnetically compensated. Here, we demonstrate bulk form exhibits small detectable moment correlating with hysteretic behaviour AHE. We formulate...
Size effect for plasmon resonance in metallic nanoparticles has been studied by finite element method solution of the Maxwell equations (COMSOL), Mie approach and microscopic random phase approximation model.Comparison with Au, Ag experimental data light extinction colloidal solutions different particle sizes is presented three types approach.
Photovoltaics is amongst the most important technologies for renewable energy sources, and plays a key role in development of society with smaller environmental footprint. Key parameters solar cells are their conversion efficiency, operating lifetime, cost obtained from photovoltaic system compared to other sources. The optimization these aspects involves exploitation new materials novel cell concepts designs. Both theoretical modeling characterization such devices require comprehensive view...
We analyze the microscopic mechanism of improvement solar cell efficiency by plasmons in metallic components embedded active optical medium a cell. focus on explanation observed new channel plasmon photovoltaic effect related to influence onto internal electricity beyond previously known mediated absorption photons. The model situation we is hybrid chemical perovskite CH 3 NH PbI − α Cl with inclusion core–shell Au/Si0 2 nanoparticles filling pores Al O or TiO porous bases at bottom layer,...
We study strong optical coupling of metal nanoparticle arrays with dielectric substrates. Based on the Fermi Golden Rule, particle-substrate is derived in terms photon absorption probability assuming a local dipole field. An increase photocurrent gain achieved through coupling. In addition, we describe light-induced, mesoscopic electron dynamics via nonlocal hydrodynamic theory charges. At small size (<20 nm), impact this type spatial dispersion becomes sizable. Both and scattering cross...
Recent research into miniaturized illumination sources has prompted the development of alternative microscopy techniques. Although they are still being explored, emerging nano-light-emitting-diode (nano-LED) technologies show promise in approaching optical resolution limit a more feasible manner. This work presents exploration their capabilities with two different prototypes. In first version, less than 1 µm was shown thanks to prototype based on an optically downscaled LED using scanning...
Nanoparticles -- regularly patterned or randomly dispersed are a key ingredient for emerging technologies in photonics. Of particular interest scattering and field enhancement effects of metal nanoparticles energy harvesting converting systems. An often neglected aspect the modeling light interaction beyond classical electrodynamics stemming from electron dynamics confined accelerated We give detailed account on free phenomena discuss analytic expressions, microscopic semi-classical...
GaN-based light emitting diodes (LEDs) have been shown to effectively operate down nanoscale dimensions, which allows further downscaling the chip-based LED display technology from micro- nanoscale. This brings up question of what resolution limit illumination pattern can be obtained. We show two different approaches achieve individually switchable nano-LED arrays. evaluated both designs in terms near-field spot size and optical crosstalk between neighboring pixels by using finite difference...
We study strong optical coupling of metal nanoparticle arrays with dielectric substrates. Based on the Fermi Golden Rule, particle-substrate is derived in terms photon absorption probability assuming a local dipole field. An increase photocurrent gain achieved through coupling. In addition, we describe light-induced, mesoscopic electron dynamics via nonlocal hydrodynamic theory charges. At small size (&lt;20nm), impact this type spatial dispersion becomes sizable. Both and scattering...
The aim of the study was to analyze psychological determinants starting homeschooling by parents towards their school-age children. We analyzed dependence this decision on personality traits according Big Five, anxiety as a trait, hope trait and factors such political religious views or parents’ own school experiences. A comparative analysis has been made with whose children attend public primary schools. used Hope for Success Questionnaire (Łaguna, Trzebiński & Zięba, 2005), State-Trait...
Plasmonic-molecular systems are gaining interest as a platform to studying strong light-matter coupling effects, owing small mode volumes of plasmonic modes and relatively sizes (hundreds atoms) enabling tackling them by the ab initio methods. In our work we use real-time TD-DFT method study what modifications occur under conditions, including plasmon redshift molecular absorption quenching. We observe mixed transitions, i.e. ocurring when initial excited states located in different subparts...
The recent advances in chip-size microscopy based on optical scanning with spatially resolved nano-illumination light sources are presented. This new straightforward technique takes advantage of the currently achieved miniaturization LEDs fully addressable arrays. These nano-LEDs used to scan sample a resolution comparable LED sizes, giving rise chip-sized microscopes without mechanical parts or accessories. operation principle and potential this kind microscope analyzed through three...