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Information Page of SAS Organisation

Project

Institute of Physics

International Projects

Fundamental Interactions of Fields and Particles

Cieľový projekt — Fundamental Interactions of Fields and Particles

Duration: 1. 7. 2017 - 31. 12. 2023
Program: Medzivládna dohoda
Project leader: RNDr. Dubnička Stanislav DrSc.

Research on Relativistic Heavy and Light Ion Physics. Experiments at the Accelerator Complex Nuclotron/NICA at JINR and CERN SPS

Cieľový projekt — Research on Relativistic Heavy and Light Ion Physics. Experiments at the Accelerator Complex Nuclotron/NICA at JINR and CERN SPS

Duration: 1. 1. 2009 - 31. 12. 2023
Program: Medzivládna dohoda
Project leader: Ing. Gmuca Štefan CSc.

Synthesis and Properties of Superheavy Elements, Structure of Nuclei at the Limits of Nucleon Stability

Cieľový projekt — Synthesis and Properties of Superheavy Elements, Structure of Nuclei at the Limits of Nucleon Stability

Duration: 1. 1. 2009 - 31. 12. 2023
Program: Medzivládna dohoda
Project leader: Ing. Kliman Ján DrSc.

SiUCs - Superinductor-based Quantum Technologies with Ultrastrong Couplings

Kvantové technolólgie založené na supraindukovanej ultrasilnej väzbe

Duration: 1. 4. 2020 - 31. 7. 2023
Program: ERANET
Project leader: Prof.RNDr. Grajcar Miroslav DrSc.
Annotation:Superconducting quantum circuits form one of the most promising solid state platforms for quantum computing. This success builds on the naturally large interaction between light, represented by microwave signals, and matter, embodied by superconducting qubits. Microwave photons are used at every stage of quantum information protocols: qubit manipulation, qubit readout and qubit-qubit coupling. To describe this rich and ubiquitous light-matter interaction, the community has relied so far on the conceptual tools inherited from quantum optics. However, atoms and photons interact weakly, perfectly justifying the use of the rotating wave approximation (RWA), which states that non-resonant processes can be safely neglected. The situation with superconducting circuits is quite different since qubits can literally be wired to transmission lines carrying microwave photons. And limitations of the RWA have already been pointed out for qubit readout or driven-dissipative protocols. SiUCs will follow a radically new approach: we will harness the potentiality of very large light-matter coupling -often referred to as ultra-strong coupling- instead of fighting it. In order to address this challenging approach in a controlled way, we will develop an architecture based on superinductors. Resonators and transmission lines built from such components display impedances close to the quantum of resistance (RQ~6.5 kOhms) at gigahertz frequencies, with very low losses, allowing a boost in light-matter interaction. SiUCS will more specifically focus on improving the efficiency of qubit operations involving light-matter interactions. In addition, superinductors will be used to engineer a missing device of the superconducting quantum circuit toolbox: the microwave single photon detector. Finally, unique many-body physics associated to ultrastrong couplings will be investigated thanks to purposely designed quantum simulators.
Project web page:http://www.quantum.physics.sk/rcqi/index.php?x=proj2020quantera_siucs

QISS - Quantum Information Structure of Spacetime

Kvantovo informačná štruktúra priestoročasu

Duration: 1. 12. 2019 - 31. 8. 2022
Program: Multilaterálne - iné
Project leader: Doc. Mgr. Ziman Mário PhD.
Annotation:Recent advances in Quantum Gravity -the effort to understand the quantum properties of space and time- point to a central role played by the notion of Information: quantum theory gives the observer a role, replacing the objective spacetime substratum with an observer–dependent informational structure. Recent advances in Quantum Information have shown that information theoretical tools naturally describe evolution of quantum geometry, have explored non-trivial causal structures, and the role these can play in Quantum Computing. The convergence between these two vibrant research domains raises foundational issues that question the hearth of our understanding of the world: Is there a deep connection between Information and the nature of Space and Time? Are space and time losing their role as grounds for an objective physical reality?
Project web page:http://www.quantum.physics.sk/rcqi/index.php?x=proj2020jtf_qiss

Trapped ions: Progress in classical and quantum applications

Lapené ióny: Rozvoj klasických a kvantových aplikácií

Duration: 19. 12. 2019 - 17. 9. 2022
Program: COST
Project leader: Prof. RNDr. Bužek Vladimír DrSc.
Annotation:Trapped ions are currently the most promising implementation of a quantum computer, where many essential building blocks have been developed in recent years. Moreover, magnetic field sensing with high sensitivity has been demonstrated and some of today’s best atomic clocks are based on atomic ions. These applications have the potential to revolutionise many aspects of our daily life. The aim of this COST Action “Trapped Ions: Progress in classical and quantum applications” (CA17113) is to enhance the current classical and quantum applications of trapped ions by supporting Europe-wide collaborations and knowledge exchange, and to allow these technologies to be taken a step further towards their commercialisation.

TNSAA - Tensor-Network States Algorithms and Applications

Stavy tenzorových sietí Algoritmy a aplikácie

Duration: 1. 1. 2021 - 31. 12. 2022
Program: JRP
Project leader: Mgr. Gendiar Andrej PhD.
Annotation:The application of quantum entanglement method, in particular tensor networks, in the context classical and quantum method, in particular tensor networks, in the context classical and quantum statistical physics has gaining traction in recent years. Tensor networks are now arising as a universal language in all disciplines of contemporary physics, ranging from atomic and condensed matter physics to high energy physics. In this project, we aim to establish a new collaboration between the Slovak and Taiwanese groups at Slovak Academy of Sciences (SAS) and National Taiwan University (NTU) in the development of algorithms and applications for the tensor network. The expertise in the SAS and NTU groups are complementary and both have extensive experience on the research on the development and application of tensor networks to various areas of physics. Combining the expertise and strengths of both teams, we can achieve the following scientific goals: (1) Development of efficient time-evolution algorithms for 1D/2D tensor networks, (2) Benchmark and improve variational algorithms in tensor networks, (3) Expand the applicability of the tensor networks to study behavior of society, (4) Extension of the existing variational tensor-based algorithms to fractal networks, and (5) Entanglement-entropy studies of hyperbolic spaces in the quantum-gravity theory.

PeDET - Perovskites Quantum Dots based Broadband Detectors – from a quantum dot to a functional detector

Širokopásmové detektory na báze perovskitov - od kvantovej bodky k funkčnému detektoru

Duration: 1. 11. 2021 - 31. 10. 2024
Program: Bilaterálne - iné
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.
Annotation:Metal halide perovskites belong to a group of materials with remarkable properties for photovoltaic and photodetective applications due to their unique optoelectronic properties and highly desirable, simple and inexpensive fabrication process. Their narrowband emission and tunable color properties make them suitable for use in solar cells, light emitting diodes (LEDs) or spectrometers with a working spectral region in the NIR-VIS-UV. On the other hand, the high atomic number of perovskite semiconductors extends their use in the X-ray region. Despite the tremendous progress in bulk perovskite-based devices, their instability in the environment and potential formation of structural defects during multiple bending discriminates them for use in bendable devices. Recently, perovskite quantum dots (PeQDs) have emerged as a zero-dimensional variant of perovskites that offer the desired properties of mechanical flexibility and durability without sacrificing performance. In addition, the combination of low cost, processability in solution and excellent photovoltaic performance makes PeQDs a great alternative to standard semiconductors, especially in the area of sensitive and flexible broadband detectors. This project brings together five different research groups and creates a platform to share their existing expertise in the synthesis, preparation and characterisation of photovoltaic and photodetective structures based on PeQDs. The exchange of existing expertise will enhance current knowledge and lead to an innovative, flexible PeQDs-based detector with extended sensitivity in the X-ray region.

TREX - Targeting Real chemical accuracy at the EXascale

Targeting Real chemical accuracy at the EXascale

Duration: 1. 6. 2021 -
Program: Horizont 2020
Project leader: prof. Ing. Štich Ivan DrSc.

Pb-free-PSC - Highly efficient and stable lead-free perovskite solar cells with optimized non-radiative recombination

Vysoko účinné a stabilné bezolovnaté perovskitové solárne články s optimalizovanou neradiačnou rekombináciou

Duration: 1. 1. 2022 - 31. 12. 2024
Program: Bilaterálne - iné
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.
Annotation:Development of highly efficient (PCE > 14%) and stable (lifetime > 1000 hours) lead-free perovskite solar cells. The ultimate goal will be achieved by replacing lead (Pb) with tin (Sn) to solve toxicity problems and using mixed 2D/3D Sn-based perovskites to solve stability problems. In order to achieve high PCE with Sn-based 2D/3D perovskites, this project will focus on the design of novel, highly efficient and stable lead-free 2D/3D perovskite absorbers and engineered interfaces by incorporating low-dimensional materials such as MXenes and passivating HTL/ETL interfaces post-growth.

EsSENce - High-performance Carbon-based composites with Smart properties for Advanced Sensing Applications

Vysoko-výkonné uhlíkové kompozity s inovatívnymi vlastnosťami pre aplikácie pokročilého snímania

Duration: 21. 10. 2020 - 20. 10. 2024
Program: COST
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.

COSMAG - From the Cosmos to the Lab: Development of the L10-FeNi Phase as a Disruptive Permanent Magnet Alternative

Z vesmíru do laboratória: vývoj nového typu permanentných magnetov na báze fázy L10-FeNi

Duration: 1. 10. 2020 - 30. 9. 2023
Program: ERANET
Project leader: Ing. Švec Peter DrSc.

National Projects

NUCLDEF - Experimental investigation of deformation and electromagnetic properties of atomic nuclei

Experimentálne štúdium deformácie a elektromagnetických vlastností atómových jadier

Duration: 1. 7. 2021 - 30. 6. 2025
Program: APVV
Project leader: Mgr. Venhart Martin PhD.
Annotation:Nuclear deformation may occur in a any atomic nucleus and it appears that it is the single most-important feature of nuclear structure. The most spectacular example of such organization in nuclei is the highly deformed Hoyle state in 12C through which carbon is produced in the Universe. The proposed project aims to elucidate the underlying nuclear structure that is responsible for appearance of such deformed configurations. The goal of the present project is to provide key new experimental data for various isotopes. Experiments will be performed at the University of Jyvaskyla (Finland) and at newly established Tandetron Laboratory in Piestany. In Jyvaskyla, isotopes 179,191,192Bi will be studied by means of isomer and in-beam gamma-ray spectroscopy. For the isomer spectroscopy, significantly modified setup will be employed at the focal plane of the recoil separator. In comparison with conventional methods, it will allow to increase the beam current by a factor of at least 10. Therefore, it has potential to establish new research areas, that might be interesting also for different groups. A multiwired proportional chamber will be developed and delivered to Jyvaskyla for this purpose. New spectrometer, based on liquid nitrogen cooled Si(Li) detector, will be constructed for the laboratory in Piestany. It will be used for the conversion-electron spectroscopy. This technique is very difficult and therefore is pursued by only very few groups in the world. It will be used for measurement of electromagnetic properties of ground-state and first-excited state of 59,61Cu isotopes.

ALICES - Carbon-silicon based composite anodes for Li-ion batteries

Anódy pre Li-iónové batérie na báze uhlík-kremíkových kompozitov

Duration: 1. 7. 2020 - 30. 6. 2024
Program: APVV
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.

BeKvaK - Benchmarking Quantum computers on Cloud

Benchmark Kvantových počítačov prístupných cez Klaud

Duration: 1. 1. 2019 - 31. 12. 2022
Program: VEGA
Project leader: Doc. RNDr. Plesch Martin PhD.

MICROPAN - Rational design of hydrogel microcapsules for immunoprotection of transplanted pancreatic islets in diabetes treatment

Cielený dizajn hydrogélových mikrokapsúl pre imunitnú ochranu pankreatických ostrovčekov v liečbe cukrovky

Duration: 7. 1. 2019 - 30. 6. 2023
Program: APVV
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.
Annotation:This project is devoted to our continuous effort aimed at the diabetes treatment by transplanted insulin-producing cells that are immunoprotected from the host immune system by a semipermeable polymer membrane. This membrane is in the form of a hydrogel microcapsule formed by the polyelectrolyte complexation of polyanions, the sodium alginate (SA) and sodium cellulose sulfate (SCS) with the polycation poly(methylene-co- cyanoguanidine), (PMCG). Over the past two decades we have accumulated important knowledge showing that this type of microcapsule (acronym PMCG), belongs to the family of microcapsules with a promise to reach the phase of clinical trials. There are two principal advantages of this microcapsule: (1) it exhibits biocompatibility after intraperitoneal implantation to various animal models, including the pre-clinical model of non-human primates (NHP), (2) it affords a unique ability to tailor the physico-chemical properties in correlation with in vivo performance that is not possible for other encapsulation systems. The MICROPAN project aims at the first systematic investigation for the microencapsulation system of the correlation between polymer selection, encapsulation conditions, microcapsule properties and in vivo performance. This is thanks to the availability of in- house synthesized SCS and PMCG polymers used instead of commercial polymers with inconsistent characteristics. The expected project outcome will be the library of microcapsules of predicted performance in vivo in the immunocompetent mice with the proposal to test selected microcapsules in NHPs that will be planned outside of MICROPAN project. This project will enhance our understanding of the mechanism of microcapsule formation by polyelectrolyte complexation and, hence, will contribute to the future rational designs of microcapsules for immunoprotection of transplanted cells.

Carbon-based particulate micro- and mesoporous materials from natural precursors

Časticové mikro- a mezopórovité materiály na báze uhlíka z prírodných prekurzorov

Duration: 1. 1. 2022 - 31. 12. 2025
Program: VEGA
Project leader: RNDr. Maťko Igor CSc.
Annotation:The presented project includes basic research in the field of particulate micro- and mesoporous carbon-based materials (PCM) with significant application impacts. It represents an original approach to the development of a method for the preparation of several types of PCM with significant sorption properties and a wide application potential. To optimize their use it is necessary to know in detail their physical properties (microstructure and porosity) and find a connection between the conditions during the formation of PCM (carbonization) and resulting microstructure, which is the first intention of the project. The originality lies in the combination of different physical methods of studying PCM, using standard sophisticated techniques (electron microscopy) as well as non-standard methods such as positron annihilation spectroscopy, thermoporosimetry and gamma spectrometry. Another purpose is to find procedures for the appropriate modification of PCM and elaboration of composites for several applications.

Design of complex quantum measurements (DESCOM)

Dizajn zložitých kvantových meraní (DESCOM)

Duration: 1. 1. 2021 - 31. 12. 2024
Program: VEGA
Project leader: Doc. Mgr. Ziman Mário PhD.
Annotation:Many aspects of quantum measurements are conceptually puzzling. However, their practical implementation is of interest for current development of quantum technologies. Interestingly, it is also a theoretical challenge to develop novel tools and efficiently design desired quantum measurements. The canonical implementations are often very complex and possible only in theory. The goal of this project is to investigate and design measurements in three different conceptual frameworks - system of cloud universal quantum computers, thermodynamic machines, and superconducting qubits. We will develop novel simulations of existing physical systems to learn about their ability to accomplish the considered quantum measurements. As a result, we expect realistic proposals for new quantum measuring apparatuses, tools for implementing complex quantum observables efficiently also on existing quantum infrastructures, and specification of certifiable requirements that such infrastructure should meet.

Effects in spatially confined diffusion systems

Efekty v priestorovo ohraničených difúznych systémoch

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: RNDr. Kalinay Pavol CSc.
Annotation:We deal with particles diffusing in non homogeneous quasi-one dimensional systems (nanochannels, pores), driven by external forces or chemical reactions. We study effects which can appear in such systems, like anomalous behavior of mobility, diffusivity, or rectification of particle flow, the ratchet effect. These effects are basic for description of particle separators, Brownian pumps, or molecular motors in nano- and biophysics. We use our new method of dimensional reduction of a 2D/3D advection -diffusion equation (Fokker-Planck in general) onto the longitudinal coordinate of the channel, including correctly the forces, as well as nontrivial boundary conditions at the channel walls. The result is the generalized Fick-Jacobs equation, enabling us to calculate the key physical quantities in a straightforward way, e.g. mobility, diffusivity, mean transition times, etc. The project involves development of the method of dimensional reduction, extension to more complicated systems, as well as its applications.

Physical properties of confined water in the environment of lipid bilayers and the influence of cryoprotectants

Fyzikálne vlastnosti uväznenej vody v prostredí lipidových dvojvrstiev a vplyv kryoprotektív

Duration: 1. 1. 2021 -
Program: VEGA
Project leader: RNDr. Šauša Ondrej CSc.
Annotation:The project will deal with the study of the physical properties of water in the environment of lipid bilayers. The phase behavior of water and the lipid bilayer in lipid dispersions formed by dimyristoylphosphatidylcholine, which serve as a model of the cell membrane, will be investigated. The solidification and melting of water will be investigated in various spatial constraints and with the addition of cryoprotectant, dimethylsulfoxide (DMSO), with a concentration of up to 10% vol. It will be investigated at what concentration the lipid bilayer will be disintegrated and from which concentration the cryoprotective effect of DMSO will be significant, it means to suppress as much as possible the formation of large ice crystals, which have fatal consequences for the disruption of cell membranes. The originality of the project solution lies in the use of a free-volume view on processes at the molecular level and in the use of positronium as a subnanometer probe for the study of local free volumes.

FlayMat - Hybrid Low Dimensional Layered Materials with new Functionalities

Hybridné nízkorozmerné vrstevnaté materiály s novými funkciami

Duration: 1. 7. 2020 - 31. 12. 2023
Program: APVV
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.

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Jadrová štruktúra v okolí uzavretých protónových vrstiev

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: Mgr. Herzáň Andrej PhD.

TMD2DCOR - Fabrication, physics and correlated states in metallic 2D transition metal dichalcogenides

Metalické 2D dichalkogenidy prechodných kovov: príprava, štúdium vlastností a korelované stavy

Duration: 1. 7. 2020 - 30. 6. 2023
Program: APVV
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.

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Metóda prípravy vzoriek pre IBA a XRF aplikácie

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: Ing. Kliman Ján DrSc.

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Nízko-dimenzionálne materiály- manipulácia, funkcionalizácia a bioaplikácie: LOW-D-MATTER

Duration: 1. 1. 2021 -
Program: VEGA
Project leader: prof. Ing. Štich Ivan DrSc.

UNPROMAT - Novel nano / micro-structured metallic materials prepared by unconventional processing routes

Nové nano / mikroštruktúrované kovové materiály pripravené nekonvenčnými spôsobmi spracovania

Duration: 1. 7. 2020 - 30. 6. 2024
Program: APVV
Project leader: Ing. Švec Peter DrSc.

MPEAS - Novel multi-principal element alloys – design, characterization and properties

Nové zliatiny s viacerými základnými prvkami – dizajn, charakterizácia a vlastnosti

Duration: 1. 7. 2021 - 30. 6. 2025
Program: APVV
Project leader: Ing. Švec Peter DrSc.

OPEQ - Operational quantum thermodynamics

Operačná kvantová termodynamika

Duration: 1. 4. 2020 - 31. 3. 2024
Program: MoRePro
Project leader: Mgr. Mohammady Mohammed Hamed PhD.

OPTIQUTE - Optimisation methods for quantum technologies

Optimalizačné metódy pre kvantové technológie

Duration: 1. 7. 2019 - 30. 6. 2023
Program: APVV
Project leader: Doc. Mgr. Ziman Mário PhD.
Annotation:Future quantum technologies are aiming to enhance our computational power, secure our communication, but also increase precision of our detection devices (from detectors of gravitational waves to medicine diagnostics methods). The effort of researchers included in this project is focused on optimisation of theoretical proposals, also by taking into account more realistic models reflecting the situations outside the laboratories. Our project joins the second quantum revolution on the side of theory, while aiming at mid-term quantum technology applications. We will develop novel tools and methods for improving the performance of quantum measurement, simulation and optimization devices. In particular, we aim to investigate the mathematical structure of quantum information resources in order to utilize them in novel and efficient quantum metrology applications and quantum simulations. The planned analysis of higher-order quantum structures and related optimal information processing is uncovering new quantum resouces (e.g. quantum causality, memory) that has potential to boost qualitatively the performance of quantum computation and communication technologies. Our plans to optimize tensor network algorithms by using the structure of interactions (space-time) are definitely enlarging our chances for efficient quantum simulations of physically relevant quantum many-body systems. Project tasks are divided into three workpackages aiming to optimize quantum structures, develop optimal higher-order quantum information processing and optimisation of tensor network algorithms.
Project web page:http://quantum.physics.sk/rcqi/index.php?x=proj2019apvv_optiqute

PRESPEED - Perspective electronic spin systems for future quantum technologies

Perspektívne elektrónové spinové systémy pre budúce kvantové technológie

Duration: 1. 7. 2021 - 30. 6. 2025
Program: APVV
Project leader: Mgr. Gendiar Andrej PhD.

BATAX - Towards lithium based batteries with improved lifetime

Pokročilé lítiové batérie s dlhou životnosťou

Duration: 1. 7. 2021 - 30. 6. 2025
Program: APVV
Project leader: Dr. Rer. Nat. Šiffalovič Peter DrSc.
Annotation:With the steadily increasing energy requirements of portable electronics and electromobility, conventional lithiumion batteries are facing new challenges. In the proposed project, we aim to stabilize the capacity and lifetime of lithium-ion batteries employing ultra-thin interfacial layers prepared by means of atomic layer deposition (ALD). The primary functions of interfacial layers are: i) preventing the dissolution of the cathode materials into electrolyte and ii) stabilizing the cathode morphology during lithiation and de-lithiation. Although the positive effect of ALD fabricated interfacial layers has already been demonstrated, systematic studies are still missing. The main bottleneck of such studies is the identification of appropriate feedback analytical techniques that enable real-time and in-operando insights into the charging/discharging mechanisms on the nanoscale. The conventional electrochemical characterization methods can only provide hints on the ongoing mechanism during degradation processes. Here we propose to utilize in-operando small-angle and wide-angle X-ray scattering (SAXS, WAXS) to track the morphology and phase changes that occur during the charging/discharging of lithium-ion batteries in realtime. The main focus of this project is on the application of real-time SAXS/WAXS studies under laboratory conditions. In these circumstances, extensive, systematic studies of various ALD interfacial layers can be performed.

Property control of metallic systems by tailoring of structures on atomic scales by internal and external factors

Riadenie vlastností kovových systémov modifikáciou štruktúry na atomárnej škále pomocou vnútorných a vonkajších faktorov

Duration: 1. 1. 2021 - 31. 12. 2024
Program: VEGA
Project leader: Ing. Švec Peter DrSc.
Annotation:We will investigate phenomena and processes acting at atomic level and leading to modification of structure and properties of metallic systems due to the action of internal and external factors. Objects of study are mainly systems out of thermodynamic equilibrium, especially systems prepared by rapid quenching of the melt, multicomponent complex metallic and quasicrystalline systems and nanostructured metal surfaces with catalytic potential. Emphasis is on determination, understanding and generalization of phenomena inducing changes in dimensions or even type of crystal lattice by proper selection of chem. composition, precursor prepar. techniques and thermodyn. processing - conventional equilibrium and nonequilibrium, e.g. in regions well above the onset of equilibr. transformation and annealing under influence of fields and their gradients. Studied phenomena and structure modifications will be jointly analyzed and interpreted by the most modern computational and experimental approaches down to atomic level.

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Štatistická mechanika klasických coulombovských systémov

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: RNDr. Šamaj Ladislav DrSc.

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Štúdium nízkomolekulových \pi-konjugovaných derivátov tiofénu vhodných ako organické polovodiče

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: RNDr. Tokár Kamil PhD.

Effect of incorporation of MXenes in the perovskite solar cells

Vplyv zabudovania MXénov do perovskitových solárnych článkov Effect of incorporation of MXenes in the perovskite solar cells

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: RNDr. Majková Eva DrSc.
Annotation:Perovskite solar cells (PSCs) revealed impressive progress in power conversion efficiency (PCE) from 9 % up to 25% during the last 10 years. PSCs are multilayers, where the active perovskite layer is placed between the layers for selective charge transport to electrodes. Structure, morphology and transport properties of the layers and interfaces determine the performance of PSCs. Application of 2D nanomaterials in PSCs offer a possibility to modify the performance. Better energy levels alignment of layers, the improved crystalline structure of the perovskites and increased stability of the device are possible benefits. This project is focused on complex studies of the effect of incorporation of 2D MXenes in the electron transport layer and in the perovskite layer. PSCs with different types of perovskites will be studied. This research will be completed by a detailed analysis of the MXenes/ perovskite interaction. For this aim, we will develop and analyze a bilayer MXenes monolayer/ perovskite.

Tungsten-trioxide layers for chemiresistive sensing of trace concentration of acetone vapours in air

Vrstvy trioxidu volfrámu pre chemirezistívne senzory stopových koncentrácií acetónu vo vzduchu

Duration: 1. 1. 2020 - 31. 12. 2022
Program: VEGA
Project leader: Ing. Ivančo Ján DrSc.
Annotation:Clinical studies have identified hundreds of different volatile organic compounds (VOCs) present in exhaled air of a human at concentrations in the order of ppm (10-6) or only ppb (10-9) and lower. Some VOCs are recognized as bio-markers of metabolic and physiological processes and potentially allow non-invasive health examination. For example, a healthy person has concentration of acetone vapors < 0.7 ppm, >1.7 ppm indicates a diabetes patients [1]. A sub-ppm acetone vapours sensor would allow the construction of a personal tester. The focus of the project will be a research of tungsten trioxide layers for a chemoresistive acetone sensor operating at hundred ppb. We will focus on the triclinic crystallographic phase of WO3, in which a high response to acetone adsorption has been observed. We will develop the preparation of the WO3 nanocrystalline layers with the maximum triclinic phase content, and study its effect on the sensory response and explore other WO3-based systems to increase sensing response.

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Výskum optických a morfologických vlastností nerovných a poréznych povrchov p-typu kryštalického kremíka s cieľom jednoznačne dokázať za akých podmienok pozorujeme jav kvantového uväznenia v kremíkových nanokryštáloch

Duration: 1. 1. 2020 - 31. 12. 2023
Program: VEGA
Project leader: RNDr. Brunner Róbert CSc.

Research of selected properties of sustainable insulating materials with the potential for use in wooden buildings

Výskum vybraných vlastností trvalo udržateľných izolačných materiálov s potenciálom využitia v drevostavbách

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: Ing. Vretenár Viliam PhD.

High-performance curved X-ray optics prepared by advanced nanomachining technology

Vysokovýkonná zakrivená röntgenová optika pripravená pokročilou technológiou nanoobrábania

Duration: 1. 1. 2021 - 31. 12. 2023
Program: VEGA
Project leader: Ing. Jergel Matej DrSc.
Annotation:The project is focused on the research and development of new types of X-ray optics with highly accurate curved active surfaces. The surfaces will be prepared by an innovative nanomachining technology. We will investigate the application of nanomachining technology to a special case of X-ray optics with curved surfaces, which is a parabolic refractive lens operating in the transmission geometry. The second special case we will focus on will be thin crystal monochromators with different thicknesses in a range of 20-2000 micrometers. Such elements can be used for example as beam splitters in modern X-ray free-electron lasers (XFEL), bent crystals in Johansson monochromators for spectroscopic applications, or they can also be used in particle accelerators for beam steering. The developed elements of curved X-ray optics will be tested in real X-ray metrology and X-ray imaging experiments using laboratory or synchrotron X-ray sources and highly sensitive directly converting X-ray detectors Pilatus and Medipix.

NanoCAre - Nanomedical approach to fight pancreatic cancer via targeting tumor- associated carbonic anhydrase IX

Využitie nanomedicíny v boji proti rakovine pankreasu prostredníctvom zacielenia nádorovo-asociovanej karbonickej anhydrázy IX.

Duration: 1. 7. 2021 - 30. 6. 2025
Program: APVV
Project leader: Mgr. Annušová Adriana PhD.
Annotation:Pancreatic cancer is a lethal disease with a rising incidence and mortality and it is the fourth leading cause of cancer-related deaths in Europe. The median survival time of pancreatic cancer is 4-6 months after diagnosis, the lowest survival rate of all cancers. Only 20% of diagnosed cases are operable. Photothermal therapy (PTT) has the potential to become a new frontrunner in the fight against pancreatic cancer. This cutting-edge biomedical application relies on the rapid heating of the plasmonic nanoparticles induced by laser light absorption, followed by an increase in the ambient temperature around the nanoparticles. The effect of the localized surface plasmon resonance (LSPR) can be observed only in a special class of nanoparticles. Photothermal therapy results in selective hyperthermia and irreversible damage of the tumor while avoiding damage to healthy tissue. However, the delivery efficiency of plasmonic nanoparticles is often insufficient. It can be increased by a dedicated functionalization of the plasmonic nanoparticles with ligands (antibodies) that selectively recognize the cancer cells. One of the main aims of the proposed project is to increase the delivery efficiency of the plasmonic nanoparticles for PTT by functionalization with antibodies that selectively recognize the tumor in the body. A promising target for functionalized nanoparticles is carbonic anhydrase IX, a hypoxia biomarker associated with an aggressive phenotype. CA IX is expressed in many types of tumors, while being absent from adjacent healthy tissue, making it an ideal highly specific candidate for anti-cancer therapy target. CAIX is abundantly expressed on the surface of pancreatic cancer cells where it correlates with a poor patient outcome. Targeting pancreatic cancer via nanomaterials-based approach combined with anti-CAIX antibody ensures highly selective application of PTT with potential benefits in the clinical environment.

An utilization of the SU(3) symmetry and the analyticity for a new theoretical evaluation of the g-2 anomaly, the prediction of the behavior of hyperon electromagnetic form factors and the evaluation of selected hadronic decays

Využitie SU(3) symetrie a analytičnosti na nové teoretické vyhodnotenie g-2 anomálie, predpovedanie správania sa hyperónových elektromagnetických formfaktorov a vyhodnotenie vybraných rozpadov hadrónov

Duration: 1. 1. 2021 - 31. 12. 2024
Program: VEGA
Project leader: Mgr. Bartoš Erik PhD.
Annotation:The project aims to achieve a better evaluation overall the muon g-2 anomaly within the Standard Model compared to recent results of other authors obtained by the classical approach, by using a new approach to evaluate leading-order hadronic contribution to the muon anomaly via the five-flavor hadronic contribution \Delta\alpha_{had}^{(5)} (t) to the running coupling constant QED \alpha(t) in the spacelike region. In connection with the planned experimental measurements of the electromagnetic Sigma-Lambda hyperon transition form factors in the unphysical region in Darmstadt to predict its behavior using the analyticity and the SU(3) symmetry. We want to extend the developed methodology for the prediction of EM form factors of the Lambda hyperon. The next issue is to investigate the consequences of the analyticity of the running coupling constant QED \alpha(s) on its behavior in the timelike region. Verify the possibilities of the covariant quark model for the description of selected hadron decays.

Projects total: 41