Pawel Borowicz

Background

About Pawel Borowicz

My research activity can be divided in five issues. Intra-molecular proton transfer (PT) reaction. The investigation of PT reaction in group of compounds known as bipirydine-diols lead to the description of the mechanism of double intra-molecular PT reaction in compounds with hydrogen bond in O−H…N bridge. Optical assembling was performed with focused near-infrared laser beam. This investigation results in the description of formation and properties of micro-particle built from poly(-Nvinylcarbazole) chains. The results of this investigation allowed to develop the method of determination of refractive index of solutions in wide range of wavelength and temperature. The main result of this study is the development of the mathematical model which describe the diffusion-controlled reaction in term of non-Fickian diffusion. The most important goal of investigation of electronic materials and devices by means of Raman spectroscopy was to obtain the information about the structure of dielectric layer and the interface between dielectric layer and semiconducting substrate. Application of deep-ultraviolet laser light makes possible to obtain Raman scattering from silicon dioxide dielectric layer placed on the silicon substrate. Developed methodology made also possible to obtain the structural information about high-κ dielectric layers deposited on semiconducting substrate. Application of absorption, developed methodology of measurement and mathematical model makes possible to tune the thickness of the semiconducting substrate where Raman scattering takes place. This methodology allowed to obtain depth-dependent Raman spectra, in other words to obtain structural data from semiconducting substrate as dependent on the thickness of material. The obtained depth resolution is few order of magnitude smaller than geometric dimension of the focus of exciting laser light in Raman microscope. The main goal of investigation of molecular films by means of vibrational (IR) spectroscopy and spectroscopic ellipsometry is the detection of imprinting and removal of the templates in Molecularly Imprinted Polymers (MIPs). MIPs can be used as robust and not expensive sensors for biomarkers of diseases, allergic agents or poisons in food and drink products. The other part of research is related to quantum-chemical calculations performed with semi-empirical or DFT methods. These calculations allowed to make precise interpretations of vibrational spectra or to predict the structure of stable pre-polymerization complexes for MIPs.