Oblasti istraživanja

Graphene-based sensors. This line of research has enabled the development of different types of sensors that are used to detect and monitor physical phenomena and chemical reactions: They detect the presence of gasses, changes in humidity, temperature changes, stresses on the substrate, acoustic signals, they can monitor physiological parameters (ECG, heart rate, respiration monitoring, blood pressure, etc.), and multi-parameter sensors have also been developed. Different types of graphene are used in this field, such as liquid phase graphene, graphene obtained by chemical vapor deposition and laser-induced graphene, depending on the desired field of application.

MEMS multisensor instrument for measuring aerodynamic pressure. The need for miniaturization, high measurement performance and a large number of measurement channels represents a major challenge for the further development of pressure measurement devices. The main goal of this research is to overcome these challenges in an innovative way. A new level of miniaturization in the production of pressure sensors is made possible by the development and production of new MEMS silicon French fries with a matrix of monolithically integrated sensor elements.

Sensors based on thick layers produced by mechanochemical treatment of metal oxide powders. The main task of this research is to find the conditions for mechanochemical synthesis and to study the physico-chemical properties of composites that react to the presence of oxygen in a wide range of concentrations. The aim of development in this area is to create a miniature semiconductor sensor with a simple design that has high sensitivity, stability and high reaction speed.

Self-powered electrochemical humidity sensors. The aim of research in this area is to develop a humidity sensor whose operating principle is based on the electrochemical reaction of water and the materials of which the sensor is made. The end result should be a sensor whose measurement properties can compete with the devices listed in the literature, with a detailed explanation of the operating mechanism.

Semiconductor detectors for ionizing radiation. These studies are devoted to the analysis of effects in different types of dosimeters: in semiconductor ionizing radiation dosimeters, in gamma radiation dosimeters based on MOS transistors with floating gate and PIN diodes, and in X-ray radiation dosimeters. Equally interesting for analysis are the effects that occur in ultraviolet radiation sensors based on floating gate MOS transistors, in neutron radiation detectors based on PIN diodes and in systems for locating sources of ionizing radiation.

A new generation of thermal MEMS sensors with thermocouples. The new thermal MEMS sensors are intended for the detection of individual gasses and the composition of a binary gas mixture. There are also plans to develop a portable multifunctional measuring device containing the new thermal MEMS sensors for use in industry, medicine and environmental protection.

Broadband microwave filters. Research in the field of microwave filters relies on simulations and the implementation of derived theory to eventually develop a sensor for the differential microwave dielectric constant of liquids based on SMA connectors. Textiles and other non-standardized materials, which are currently very topical, are being considered as solutions.

Research in the field of microfluidic MEMS platforms involves the development, design and implementation of devices that will have applications in the fields of chemistry, biochemistry, biology and medicine. The devices are made of silicon and pyrex glass as well as polymer materials. As part of this research, the development and manufacture of several devices will be considered, which will be combinations of microfluidic reactors, micromixers and microparticle separators. Particular attention will be paid to optimising the dimensions of the microchannels and the parameters of the integrated heating elements in microfluidic reactors for the synthesis of nanoparticles (titanium(IV) oxide as well as nanoparticles of other materials). Work is also underway to optimise and improve microfluidic reactors for the photoredox functionalization of various N-aryl tetrahydroisoquinolines with visible light to obtain potentially biologically active derivatives. The validity of the trade-off between the manufacturing costs and the reliability of the devices produced is being investigated. is dedicated to exploring ways to improve the efficiency of microfluidic reactors for photocatalytic reactions by integrating plasmonic structures into microchannels.

The aim of research in this area is to achieve the highest possible efficiency in the conversion of solar energy into electricity using relatively cheap and available materials. Research is being carried out to optimise existing cells using new materials, methods and processes. The experiments are going in several directions: The possibility of functionalizing the pigments used to date, the influence of different techniques for applying oxide layers (screen printing, doctor blades, sputtering), the possibility of using perovskite materials and the integration of plasmonic structures to extend the absorption range and increase the efficiency of these solar cells are being investigated.

Modeling the kinetics and dynamics of adsorption-desorption (AD) processes. Research in this area involves the modeling of AD processes in resonant micro-electromechanical systems and micro/nanostructures with plasmonic materials, with particular reference to practical applications. The following physical and chemical changes are modeled: Adsorption of heavy metals and hazardous substances (bioremediation), AD gasses contributing to global warming, AD volatile organic compounds (VOCs) in food chains, etc. The modeling of AD processes with artificial intelligence methods is also extremely interesting. The investigation of the physical properties of micro- and nanosystems is carried out by multiphysical modeling using the finite element method.

Theoretical and experimental research into optical metasurfaces. In this area, optical metasurfaces as well as numerous other structures (plasmonic and photonic crystals) are investigated for use in refractometric biochemical sensors. Plasmonic structures are particularly suitable for this application, as the extreme localization of the plasmon excitations enables the detection of even the smallest changes in the real part of the refractive index of the environment, which can lead to the detection of extremely low analyte concentrations. In addition to sensitivity, the second major advantage of this type of sensor is its exceptional speed, i.e. working with optical frequencies.

Metal coatings produced by electrochemical deposition with application in microelectronics. This research area includes the electrochemical deposition of thin metal layers and multilayer structures, metamaterials, while software analysis and the application of artificial neural networks (ANN method) and multiparameter regression analysis (RSM method) are carried out for optimization. A very important part of the test is devoted to the characterization of the structural-morphological and mechanical properties of the synthesized materials. The above-mentioned research has also found its application in forensics.

Synthesis, development and characterization of new multifunctional polymeric materials and their nanocomposites. Research in this area focuses on the synthesis, optimization, characterization and application of new biocompatible polyurethanes, linear and cross-linked magnetic polyurethane nanoparticles and polyurethane nanocomposites (with different types of nanoparticles). Special attention is paid to the goal that the synthesized materials have good mechanical, thermal and surface properties. The study of the materials obtained is aimed at two applications: as coatings in medicine, so that in addition antimicrobial properties, biocompatibility, release of drugs, genes, antibiotics, etc. from polymer materials are studied, and as coatings for use in microelectronics.

Investigating the mechanical properties of polymer materials on concrete construction solutions using additive technologies. Additive technology is an important ally both in the design process and in the realization of concrete construction solutions or prototypes with complex geometries. The aim of the research is to improve the mechanical properties of polymer materials by exposing them to various chemical compounds or through additional thermal treatment.