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Wyniki wyszukiwania dla: Spectroscopic ellipsometry
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Grzegorz Lentka dr hab. inż.
OsobyGrzegorz Lentka uzyskał tytuł magistra inżyniera w roku 1996 na Wydziale Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej w zakresie systemów pomiarowych. Stopień doktora nauk technicznych uzyskał w roku 2003, a doktora habilitowanego w 2014. Obecnie zatrudniony jest w Katedrze Metrologii i Optoelektroniki na stanowisku profesora PG. W ramach prowadzonej dydaktyki zajmuje się zagadnieniami związanymi z interfejsami...
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Fourier-transform infrared spectroscopy (FTIR) spectra of bulk boron and borophene flakes
Dane BadawczeThese data contain Fourier-transform infrared spectroscopy (FTIR) spectra of bulk boron and borophene flakes obtained during ball milling (450 rpm, 6 h, 1 g). Spectra were acquired to investigate the chemical bonds and functional groups on the surface of the pristine boron and borophene flakes.
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X-Ray photoemission spectroscopy measurements of the Nb-V-Sr-O ceramics
Dane BadawczeNiobium doped strontium vanadate based perovskite SrV1-xNbxO3-δ materials were prepared via conventional solid state reaction (SSR) method. For comparison, different samples with a various amount of niobium dopant in the structure were synthesized; x = 0; 0,2; 0,5; 0,8 and 1. Samples were sintered by two-steps: first under a pure hydrogen (purity >99.999%)...
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Andrzej Okuniewski dr inż.
OsobyWykształcenie 2010-2014: Katedra Chemii Nieorganicznej, Wydział Chemiczny, Politechnika Gdańskadoktor nauk chemicznych (nauki chemiczne – chemia, chemia nieorganiczna) 2009-2010: Wydział Chemiczny, Politechnika Gdańskamagister chemii (chemia stosowana) 2005-2009: Wydział Chemiczny, Politechnika Gdańskainżynier chemik (chemia stosowana) 2002-2005: II Liceum Ogólnokształcące im. Władysława Pniewskiego w Gdańskuprofil biologiczno-chemiczno-fizyczny...
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Tailoring properties of indium tin oxide thin films for their work in both electrochemical and optical label-free sensing systems
PublikacjaThis work is devoted to the identification properties of indium tin oxide (ITO) thin films responsible for their possible application in combined optical and electrochemical label-free sensing systems offering enhanced functionalities. Since any post-processing would make it difficult to identify direct relation between deposition parameters and properties of the ITO films, especially when deposition on temperature-sensitive substrates...
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Jacek Ryl dr hab. inż.
OsobyStopień doktora nauk technicznych uzyskał w roku 2010. W tym samym roku podjął pracę w Katedrze Elektrochemii, Korozji i Inżynierii Materiałowej na Wydziale Chemicznym. W 2018 roku uzyskał stopień doktora habilitowanego nauk technicznych w dyscyplinie technologia chemiczna. Od 2021 roku zatrudniony w Instytucie Nanotechnologii i Inżynierii Materiałowej Wydziału Fizyki Technicznej i Matematyki Stosowanej PG. W pracy naukowej skupia...
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Jerzy Wtorek prof. dr hab. inż.
OsobyJerzy Wtorek uzyskał tytuł magistra inżyniera w 1976 roku na Wydziale Elektroniki Politechniki Gdańskiej, a stopień doktora nauk technicznych i doktora habilitowanego na Wydziale Elektroniki, Telekomunikacji i Informatyki Politechniki Gdańskiej, odpowiednio w 1986 i 2004 roku. Tytuł profesora uzyskał w 2016 r. Jego zainteresowania dotyczą nieinwazyjnych metod oceny układu krążenia, elektrycznych (aktywnych i pasywnych) właściwości...
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Spectroscopy Methods in Nanotechnology 2024
Kursy Online -
In-situ optical diagnostics of boron-doped diamond films growth
PublikacjaInterferometry is a desirable method for in-situ measurement of thin, dielectric film growth, as it don't modify conditions of film deposition. Here we present interferometrical measurements of thickness of doped diamond films during Chemical Vapor Deposition (CVD) process. For this purpose we used a semiconductor laser with a 405nm wavelength. Additional ex-situ measurement using spectral interferometry and ellipsometry...
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FTIR (Fourier-transform infrared spectroscopy) spectra of titanium dioxide coated nickel foams.
Dane BadawczeThis dataset contains FTIR spectra recorded on a JASCO 4200 spectrometer of nickel foams coated with titanium dioxide after heating at 400, 500 and 600 C and after photocatalytic process with NOx.
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Spectroscopy properties of 1,8-diazafluoren-9-one (DFO) in PVA polymer for different concentrations
Dane BadawczeSpectroscopy properties: absorption and fluorescence spectra of 1,8-diazafluoren-9-one (DFO) in PVA film for different concentrations of dye.
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Functionalized azobenzocrown ethers as sensor materials—The synthesis and ion binding properties
PublikacjaNew 13- and 16-membered azobenzocrown ethers with aromatic amino, amide, ether–ester or ether–amide residue in para position to an azo moiety were obtained. Acid–base properties and ion binding ability of the colored compounds were studied by spectroscopic methods: UV–vis, fluorimetry and 1H NMR spectroscopy. Selected azobenzocrowns were tested as ionophores in ion-selective membrane electrodes (ISEs) – classic and miniature all...
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Inhibitive effect of sodium molybdate on corrosion of AZ31 magnesium alloy in chloride solutions
PublikacjaIn this work, corrosion inhibition of the AZ31 magnesium alloy was investigated in NaCl solutions containing different amounts of sodium molybdate inhibitor. Electrochemical, hydrogen evolution, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. The results showed that Na2MoO4 inhibitor provides reliable inhibition at high concentrations (150 mM). Surface examination...
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Novel nitrogen precursors for electrochemically driven doping of titania nanotubes exhibiting enhanced photoactivity
PublikacjaNitrogen doped titania nanotubes were successfully sensitized by electrochemical method, i.e. as-anodized titania was immersed in different amine (diethyleneamine-DETA, triethyleneamine-TEA, ethylenediamine-EDA) and urea (U) solution and a constant potential was applied. The highly ordered morphology of fabricated N-TiO2 was investigated by using scanning electron microscopy. Spectroscopic techniques, i.e. UV-Vis spectroscopy,...
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Synthesis and properties of carboxy derivative of Epidian 6 monomethacrylate (in English)
PublikacjaWe present the synthesis of an oligomer with carboxy and methacrylic groups based on Epidian 6. The effect of the catalyst nature and amount, solvent nature and process temperature on the rate of the reaction between Epidian6 monomethacrylate and adipic acid was examined at 313, 323 and 333 K in the presence of 4-dimethylaminopyridine, 1,4-diazobicyclo[2.2.2]octane, and benzyltriammonium chloride. The synthesized oligomer was characterized...
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Low temperature growth of diamond films on optical fibers using Linear Antenna CVD system
PublikacjaIt is not trivial to achieve a good quality diamond-coated fibre interface due to a large difference in the properties and composition of the diamond films (or use coating even) and the optical fibre material, i.e. fused silica. One of the biggest problems is the high temperature during the deposition which influences the optical fibre or optical fibre sensor structure (e.g. long-period gratings (LPG)). The greatest advantage of...
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Model dynamic electrochemical impedance spectroscopy (DEIS) results obtained with various DC polarization rates
Dane BadawczeThe dataset contains results of model dynamic electrochemical impedance spectroscopy studies carried out on a setup of 10 diodes in series, which were connected in parallel with a condenser. The impedance data were acquired every 1 s (the analytic window length for Fourier Transform was 1 s). The model system was polarized between 0 and +8 V with DEIS...
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Nonlinear impedance of 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe nonlinear electrcial properties of 50(Bi2VO5.5)-50SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of strontium–borate glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe linear electrcial properties of strontium–borate glass was measured by impedance spectroscopy method.
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Reduction of the strontium titanate doped by Ytrium ceramics observed by X-ray photoemission spectroscopy method
Dane BadawczeYtrium-doped strontium titanate (YSTF) ceramics materials were manufactured by three various methods: 1) standard solid-state reaction method from Y2O3 (Sigma Aldrich, 99,9%), TiO2 (Sigma Aldrich, 99%) and SrCO3 (Sigma Aldrich,98%), 2) Pechini method, 3) wet method.
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Nonlinear impedance of 35Bi2VO5.5-65SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 35Bi2VO5.5-65SrB4O7 glass was measured by impedance spectroscopy method.
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Nonlinear impedance of 30Bi2VO5.5-70SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 30Bi2VO5.5-70SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of strontium–borate glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrcial properties of strontium–borate glass was measured by impedance spectroscopy method.
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Nonlinear impedance of 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 50(Bi2VO5.5)-50SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of Bi2VO5.5 glass-ceramic measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrical properties of Bi2VO5.5 glass-ceramic prepared by traditional melt quenching technique was measured by impedance spectroscopy method.
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Nonlinear impedance of 45Bi2VO5.5-55SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrcial properties of 45Bi2VO5.5-55SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of 50Bi2VO5.5-50SrB4O7 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrcial properties of 50Bi2VO5.5-50SrB4O7 glass was measured by impedance spectroscopy method.
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Raman spectroscopy analysis of poly(lactic acid)-carbon black composite treated by femtosecond laser
Dane BadawczeThe dataset contains the Raman spectroscopy measurements of commercially available carbon black-filled poly(lactic acid) 3D printed electrodes after femtosecond laser ablation. These results were utilized in the manuscript published in Electrochimica Acta: 10.1016/j.electacta.2022.140288
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Dataset for systematic literature review about phosphorus magnetic resonance spectroscopy (31 P MRS).
Dane BadawczeThe file contains the publications retrived for systematic literature review from sleceted databases: Web of Science Core Collection, Scopus, Chochrane Library, and Pubmed. Records were identified by using nesting technique. Our search log stated as follow: "phosphorus" AND ("mri spectroscopy" OR "31P MRS").
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Aqueous Molybdate Provides Effective Corrosion Inhibition of WE43 Magnesium Alloy in Sodium Chloride Solutions
PublikacjaCorrosion and corrosion inhibition of WE43 magnesium alloy were investigated in NaCl solutions containing different amounts of sodium molybdate. Electrochemical, microscopic, and spectroscopic experiments were utilized to examine the mechanism of corrosion inhibition by molybdates. Electrochemical data showed that Na2MoO4 inhibitor provides reliable inhibition at concentrations at and above 100 mM. Raman and XPS spectroscopy demonstrated...
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Quantitative fluorescent determination of DNA – Ochratoxin a interactions supported by nitrogen-vacancy rich nanodiamonds
PublikacjaOchratoxin A (OTA) is a hazardous contaminant of a large variety of plant and animal originated food. Herein, we report an interaction of OTA with calf thymus DNA (ct DNA) on the nanodiamond surface. We employed multispectroscopic techniques to elucidate the binding mechanism of OTA with ct DNA. The fluorescence and UV–Vis spectroscopy results show that OTA binds to ds ct DNA and forms complexes. We obtained the binding constants...
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Role of nitrogen in optical and electrical band gaps of hydrogenated/hydrogen free carbon nitride film
PublikacjaWe report the optical and electrical band gap energy of amorphous hydrogenated carbon nitride (a-HCNx) and carbon nitride (a-CNx) as a function of nitrogen concentration (N/C). The optical band gap of a-HCNx and a-CNx films has been determined by means of Ellipsometry and UV-VIS. Both optical and electrical band gaps increase with elevated nitrogen concentration. Experimentally obtained electrical band gap is compared with the...
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Spectroscopy Methods in Nanotechnology - laboratory 2022
Kursy OnlineCourse for 2nd degree Students of Nanotechnology, specialization Nanostructures and computer simulations in materials science, sem. 2.
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Spectroscopy Methods in Nanotechnology - laboratory 2023
Kursy OnlineCourse for 2nd degree Students of Nanotechnology, specialization Nanostructures and computer simulations in materials science, sem. 2.
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Spectroscopy Methods in Nanotechnology - laboratory 2024
Kursy Online -
Optimization of electrochemical doping approach resulting in highly photoactive iodine-doped titania nanotubes
PublikacjaThe paper focuses on the optimization procedure concerning the synthesis method resulting in highly ordered titania nanotubes doped with iodine atoms. The doping process was based on the electrochemical treatment of a titania nanotube layer immersed in a potassium iodide (KI) solution acting as an iodine precursor. A number of endeavors were undertaken in order to optimize the doping conditions. Electrolyte concentration, reaction...
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X-ray Photoelectron Spectroscopy studies of citric acid adsorption on aluminium alloy 5754 in alkaline media
Dane BadawczeThis dataset contains the results of high-resolution XPS obtained during evaluation of high corrosion inhibition efficiency of citric acid towards aluminium alloy 5754 in bicarbonate buffer pH=11. The exposition duration of samples to electrolytic environment was 100 min. Each sample was exposed at different citric acid concentration ranging from 0...
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X-ray Photoelectron Spectroscopy studies of various carboxylic acids adsorption on aluminium alloys in alkaline media
Dane BadawczeThis dataset contains the results of high-resolution XPS studies obtained during evaluation of high corrosion inhibition efficiency of various carboxylic acids towards aluminium alloy 5754 in bicarbonate buffer pH=11.
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X-ray Photoelectron Spectroscopy (XPS) results of bulk boron and borophene after the ball-milling process
Dane BadawczeThese data contain X-ray Photoelectron Spectroscopy (XPS) results of boron and borophene nanoflakes induced during ball milling at rotation speed of 450 rpm, 6 h and mass loading of 1g.
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Broadband dielectric spectroscopy studies of multiple times processed poly(lactic acid)-carbon black composites
Dane BadawczeThis dataset contains broadband dielectric spectroscopy studies of commercially available ProtoPasta 3D printable filament, composed of poly-lactic acid (PLA) and conductive carbon black (CB) filler. The aim of the study is to observe structural differences and applied properties changes under multiple reprocessing of the composite material at different...
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XPS (X-ray photoelectron spectroscopy) of titanium dioxide coated nickel foams and heated 400,500, 600C
Dane BadawczeThis data set contains XPS spectra recorded for nickel foams coated with titanium dioxide and heated at 400, 500 and 600 degrees celcius.
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X-ray photoelectron spectroscopy (XPS) results for nickel(II) oxide (NiO) functionalized borophene and boron
Dane BadawczeThis dataset contain X-ray photoelectron spectroscopy (XPS) results for nickel(II) oxide (NiO) functionalized borophene before and after oxygen evolution reacion (OER) nad bulk boron.
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Nonlinear impedance of as-quenched Bi2VO5.5 glass-ceramic was measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe nonlinear electrical properties of as-quenched Bi2VO5.5 glass-ceramic was measured by impedance spectroscopy method.
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Linear impedance of as-quenched 40Bi2VO5.5-60SrB4O7 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrcial properties of 40Bi2VO5.5-60SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of 10Na2O–60P2O5–30CaO glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrical properties of 10Na2O–60P2O5–30CaO glass was measured by impedance spectroscopy method.
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Nonlinear impedance of as-quenched 40Bi2VO5.5-60SrB4O7 glass measured with impedance spectroscopy method at high temperature region
Dane BadawczeThe nonlinear electrical properties of as-quenched 40Bi2VO5.5-60SrB4O7 glass was measured by impedance spectroscopy method.
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Linear impedance of 40Na2O-20CaO-40P2O5 glass measured with impedance spectroscopy method at low temperature region
Dane BadawczeThe linear electrical properties of 40Na2O-20CaO-40P2O5 glass was measured by impedance spectroscopy method.
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Influence of Urea and Dimethyl Sulfoxide on K-Peptide Fibrillation
PublikacjaProtein fibrillation leads to formation of amyloids—linear aggregates that are hallmarks of many serious diseases, including Alzheimer’s and Parkinson’s diseases. In this work, we investigate the fibrillation of a short peptide (K-peptide) from the amyloidogenic core of hen egg white lysozyme in the presence of dimethyl sulfoxide or urea. During the studies, a variety of spectroscopic methods were used: fluorescence spectroscopy...
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Fluorescence of p-hydroxyazobenzocrowns – Tautomeric equilibrium effect
PublikacjaThe spectroscopic properties of a series of para-hydroxyazobenzocrowns, including three novel compounds, were investigated using UV–Vis absorption and emission spectroscopy. This study presents, for the first time, determined quantum yield (QY) values for macrocycles of this category, ranging between 0.122 and 0.195. The highest values were obtained for crowns bearing two phenyl substituents in benzene rings. The impact of aromatic...
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Are stabilizing osmolytes preferentially excluded from the protein surface? FTIR and MD studies
PublikacjaInteractions between osmolytes and hen egg white lysozyme in aqueous solutions were studied by means of FTIR spectroscopy and molecular dynamics. A combination of difference spectra method and chemometric analysis of spectroscopic data was used to determine the number of osmolyte molecules interacting with the protein, and the preferential interaction coefficient in presented systems. Both osmolytes – L-proline and trimethylamine-N-oxide...