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    Wyświetlanie 1-14 z 14
    Tytuł:
    The impact of atomic layer deposition technological parameters on optical properties and morphology of Al2O3 thin films
    Autorzy:
    Dobrzanski, L. A.
    Szindler, M.
    Hajduk, B.
    Kotowicz, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/173801.pdf
    Data publikacji:
    2015
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    thin film
    aluminum oxide
    atomic layer deposition
    Opis:
    This paper presents some results of investigations on aluminum oxide Al2O3 thin films prepared by the atomic layer deposition method on polished monocrystalline silicon. It has been described how the technological parameters of the deposition process, like the number of cycles and substrate temperature, influenced the optical properties and morphology of prepared thin films. Their physical and optical properties like thickness, uniformity and refractive index have been investigated with spectroscopic ellipsometry, atomic force microscopy and UV/vis optical spectroscopy.
    Źródło:
    Optica Applicata; 2015, 45, 4; 573-583
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Carbon Nanotubes Counter Electrode for Dye-Sensitized Solar Cells Application
    Autorzy:
    Drygała, A.
    Dobrzański, L. A.
    Szindler, M.
    Prokopiuk vel Prokopowicz, M.
    Pawlyta, M.
    Lukaszowicz, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/352593.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dye-sensitized solar cells
    counter electrode
    carbon nanotubes
    TEM
    Opis:
    The influence of the carbon nanotubes counter electrode deposited on the FTO glass substrates on the structure and optoelectrical properties of dye-sensitized solar cells counter electrode (CE) was analysed. Carbon materials have been applied in DSSC s in order to produce low-cost solar cells with reasonable efficiency. Platinum is a preferred material for the counter electrode because of its high conductivity and catalytic activity. However, the costs of manufacturing of the platinum counter electrode limit its use to large-scale applications in solar cells. This paper presents the results of examining the structure and properties of the studied layers, defining optical properties of conductive layers and electrical properties of dye-sensitized solar cells manufactured with the use of carbon nanotubes. Such counter electrodes are promising for the future fabrication of stable, low-cost and effective dye-sensitized solar cells.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 803-806
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nanocrystalline TiO2 Powder Prepared by Sol-Gel Method for Dye-Sensitized Solar Cells
    Autorzy:
    Dobrzański, L. A.
    Szindler, M. M.
    Szindler, M.
    Lukaszkowicz, K.
    Drygała, A.
    Prokopiuk vel Prokopowicz, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/353118.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    sol-gel
    nanopowder
    titanium dioxide
    dye-sensitized solar cell
    Opis:
    In this study titanium dioxide nanopowder has been manufactured and examined. Nanocrystalline TiO2 powder has been obtained by hydrolysis and peptization of a solution of titanium isopropoxide and isopropanol. Subsequently, produced powder has been subjected to structural analysis by using a transmission electron microscope, X-ray diffractometer, and Raman spectrometer. For comparison purposes, a commercially available titanium dioxide powder (i.e. titanium white) was also used. Thin layers have been made from this powder and further have been examined by using a UV/VIS spectrometer. Completed research shows the nanocrystalline structure of obtained layers and their good properties such as absorbance at the range of wavelength equal 200 - 1000 nm.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 833-836
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Carbon Nanomaterials Application as a Counter Electrode for Dye-Sensitized Solar Cells
    Autorzy:
    Dobrzański, A.
    Prokopiuk vel Prokopowicz, M.
    Drygała, A.
    Wierzbicka, A.
    Lukaszkowicz, K.
    Szindler, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/352043.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    dye-sensitized solar cell
    carbon nanomaterials
    counter electrode
    nanocrystalline photovoltaic cells
    Opis:
    The paper presents the results of the structure investigation of a counter electrode in dye-sensitized solar cells using the carbon nanomaterials. Solar cells were fabricated on the glass with transparent conductive oxide TCO (10Ω/sq). Nanocrystalline titania based photoanode was prepared by spreading TiO2 paste onto TCO glass and subsequently annealed at 450°C for at least 30 min to convert anatase phase and make an interparticle network. After then the nanostructured titania films was immersed into an ethanolic solution of the ruthenium-based dye. As a counter electrodes of dye-sensitized solar cells composite films of carbon nanomaterials and polystyrene sulfonate doped poly (3,4-ethylenedioxythiophene) PEDOT-PSS (Sigma-Aldrich) were deposited onto TCO substrates. Because carbon nanoelements and titanium oxide consist of nano-metric structural units to determine the properties of the cells and their parameters several surface sensitive techniques and methods, i.e. Raman spectroscopy, Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron Microscopy (HRTEM), and electric properties of conductive layers were used.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 27-32
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes in Structure of CuCr0.6 Alloy After Repetitive Corrugation Process
    Autorzy:
    Jung, T.
    Kwaśny, W.
    Rdzawski, Z.
    Głuchowski, W.
    Matus, K.
    Pawlyta, M.
    Szindler, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/356417.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    CuCr0.6 alloy
    severe plastic deformation
    repetitive corrugation and straightening
    electron backscatter diffraction
    transmission electron microscopy
    Opis:
    This paper presents the study of repetitive corrugation process influence on the strengthening of annealed alloy. Based on the results of mechanical properties of deformed sample, it has been found that the microhardness, ultimate tensile strength, yield strength and apparent elastic limit are significantly increased in relation to annealed sample. Examination on transmission electron microscopy confirmed the effect of intensive plastic deformation on structure fragmentation in the nanometric scale. This work confirmed the possibility of using the repetitive corrugation process to increase mechanical properties of CuCr0.6 alloy.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 4; 2441-2448
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zastosowanie transmisyjnej mikroskopii elektronowej w badaniach materiałów inżynierskich
    Autorzy:
    Pawlyta, M.
    Szindler, M.
    Łukowiec, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/274412.pdf
    Data publikacji:
    2017
    Wydawca:
    Roble
    Tematy:
    transmisyjna mikroskopia elektronowa
    badanie materiałów
    materiały inżynierskie
    transmission electron microscopy
    materials testing
    engineering materials
    Źródło:
    LAB Laboratoria, Aparatura, Badania; 2017, 22, 5; 6-10
    1427-5619
    Pojawia się w:
    LAB Laboratoria, Aparatura, Badania
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and properties of TiO2, NiO and ZnO nanoparticles and their possible biomedical application
    Autorzy:
    Szmajnta, K.
    Szindler, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/378921.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    nanoparticles
    sol-gel method
    nanocząstki
    metoda zol-żel
    Opis:
    Purpose: The main purpose of this publication is to bring closer method of synthesis and examining basic properties of TiO2, ZnO and NiO nanoparticles (NPs), and investigate their possible biomedical application. Design/methodology/approach: Nanopowders were made with sol-gel method. Surface morphology studies of the obtained materials were made using Zeiss's Supra 35 scanning electron microscope and the structure using S/TEM TITAN 80-300 transmission electron microscope. In order to confirm the chemical composition of observed nanopowders, qualitative tests were performed by means of spectroscopy of scattered X-ray energy using the Energy Dispersive Spectrometer (EDS). The DLS (Dynamic Light Scattering) method was used to analyse the particle size distribution using the AntonPaar Litesizer 500 nanoparticle size analyser. Changes in particle size distribution at elevated temperatures were also observed. The TiO2, ZnO and NiO NPs with spherical shape were successfully produced by sol-gel method. Findings: The diameter of the as prepared nanoparticles does not exceed 25 nm which is confirmed by the TEM analysis. The highest proportion among the agglomerates of the nanoparticles has been shown to show those with a diameter of 80 to 125 nm. The qualitative analysis of EDS confirmed the chemical composition of the material. Practical implications: Nanoparticles (NPs) has been receiving an incrementally increasing interest within biomedical fields researchers. Nanoparticles properties (physical, chemical, mechanical, optical, electrical, magnetic, etc.) are different from the properties of their counterparts with a larger particle size. Originality/value: The nanoparticles were prepared using sol-gel method which allows the particle size to be controlled in a simple way.
    Źródło:
    Archives of Materials Science and Engineering; 2019, 98, 2; 81-84
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Titanium dioxide nanoparticles and thin films deposited by an atomization method
    Autorzy:
    Machalska, G.
    Noworolnik, M.
    Szindler, M.
    Sitek, W.
    Babilas, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/379058.pdf
    Data publikacji:
    2019
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    sol-gel
    nanoparticles
    thin film
    titanium dioxide
    atomization
    zol-żel
    nanocząsteczki
    cienka powłoka
    dwutlenek tytanu
    atomizacja
    Opis:
    Purpose: The article presents the results of research on titanium dioxide synthesized by a sol-gel method that is an easy process enabling the control of the shape and size of particles The purpose of this article is to examine titanium dioxide nanoparticles and thin films deposited by an atomization method. Design/methodology/approach: Titanium dioxide sol was synthesized by using titanium isopropoxide as a precursor. Optical properties were measured by a UV-Vis spectrometer. Structural studies were performed by Raman spectroscopy. Qualitative analysis was performed by the EDS. Surface morphology of nanoparticles and thin films was performed by the SEM technique. Findings: The sol-gel method allows the formation of uniform nanoparticles and thin films of titanium dioxide. The atomization method is a successful method for the deposition of sol to the surface of substrates. Research limitations/implications: The next step in the research will be to investigate the obtained thin films in dye-sensitized solar cells as a semiconductive layer. Practical implications: Unique properties of produced titanium dioxide nanostructural materials have caused the interest in them in such fields as optoelectronics, photovoltaics, medicine and decorative coatings. Originality/value: Titanium dioxide thin films and nanoparticles were synthesized using the sol-gel method and then deposited by the atomization method.
    Źródło:
    Archives of Materials Science and Engineering; 2019, 100, 1/2; 34-41
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of UV radiation on TiO2 nanoparticles antibacterial behaviour
    Autorzy:
    Szmajnta, K.
    Szindler, M. M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1818498.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    titanium dioxide
    nanoparticles
    antibacterial properties
    dwutlenek tytanu
    nanocząstki
    właściwości antybakteryjne
    Opis:
    Purpose: The influence of UV radiation on the antibacterial properties of titanium oxide nanoparticles was examined using yeast Saccharomyces cerevisiae strain for this purpose. Design/methodology/approach: Nanopowders were made with sol-gel method. Surface morphology studies of the obtained materials were made using Zeiss's Supra 35 scanning electron microscope. In order to confirm the chemical composition of observed nanopowders, qualitative tests were performed by means of spectroscopy of scattered X-ray energy using the Energy Dispersive Spectrometer (EDS). The DLS (Dynamic Light Scattering) method was used to analyse the particle size distribution using the AntonPaar Litesizer 500 nanoparticle size analyser. Changes in particle size distribution at elevated temperatures were also observed. The antibacterial properties of titanium oxide nanoparticles were examined by subjecting the yeast sample to irradiation with an UV lamp. Findings: Samples containing yeast Saccharomyces cerevisiae were irradiated with and without the addition of TiO2 nanoparticles. A faster decrease in the colony count was observed compared to irradiated exposures without the addition of a suspension. Practical implications: Presented materials can be used in the production of antibacterial coatings for surfaces occurring in public spaces such as schools, hospitals, public toilets for the simple and effective elimination of bacteria and fungi as a result of exposures. Originality/value: The antibacterial properties of titanium oxide nanoparticles under UV radiation were confirmed.
    Źródło:
    Archives of Materials Science and Engineering; 2020, 101, 1; 25--31
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The optical parameters of TiO2 antireflection coating prepared by atomic layer deposition method for photovoltaic application
    Autorzy:
    Szindler, Marek
    Szindler, Magdalena M.
    Powiązania:
    https://bibliotekanauki.pl/articles/1835965.pdf
    Data publikacji:
    2020
    Wydawca:
    Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
    Tematy:
    thin film
    atomic layer deposition
    titanium dioxide
    Opis:
    Titanium dioxide thin films have been deposited on silicon wafers substrates by an atomic layer deposition (ALD) method. There optical parameters were investigated by spectroscopic ellipsometry and UV/VIS spectroscopy. A material with a refractive index of 2.41 was obtained. Additionally, in a wide spectral range it was possible to reduce the reflection from the silicon surface below 5%. The Raman spectroscopy method was used for structural characterization of anatase TiO2 thin films. Their uniformity and chemical composition are confirmed by a scanning electron microscope (SEM) energy dispersive spectrometer (EDS).
    Źródło:
    Optica Applicata; 2020, 50, 4; 663-670
    0078-5466
    1899-7015
    Pojawia się w:
    Optica Applicata
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of heat treatment on the surface morphology and optical properties of the Al2O3 thin film for use in solar cells
    Autorzy:
    Szindler, Marek
    Szindler, Magdalena M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2063888.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    antireflection coating
    atomic layer deposition method
    solar cells
    Opis:
    The technology of manufacturing silicon solar cells is complex and consists of several stages. The final steps in succession are the deposition of antireflection layer and discharge contacts. Metallic contacts are usually deposited by the screen printing method and then, fired at high temperature. Therefore, this article presents the results of a research on the effect of heat treatment on the properties of the Al2O3 thin film previously deposited by the atomic layer deposition method. It works well as both passivating and antireflection coating. Moreover, heat treatment affects the value of the cell short-circuit current and, thus, its efficiency. The surface morphology, optical and electrical properties were investigated, describing the influence of heat treatment on the properties of the deposited layers and the manufactured solar cells.
    Źródło:
    Opto-Electronics Review; 2021, 29, 4; 181--186
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Synthesis and magnetic properties of Fe2O3 nanoparticles for hyperthermia application
    Autorzy:
    Szmajnta, K.
    Szindler, M.M.
    Szindler, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/2175773.pdf
    Data publikacji:
    2021
    Wydawca:
    Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
    Tematy:
    magnetic nanoparticles
    hyperthermia
    superparamagnetism
    nanocząstki magnetyczne
    hipertermia
    superparamagnetyzm
    Opis:
    Purpose: The main purpose of this publication is to bring closer co-precipitation method of magnetic particles synthesis. Procedure of examining and characterisation of those materials was also shown. Design/methodology/approach: During the work, the properties and possible biomedical application of the material produced were also examined. Surface morphology studies of the obtained particles were made using Zeiss's Supra 35 scanning electron microscope and S/TEM TITAN 80-300 transmission electron microscope. In order to confirm the chemical composition of observed layers, qualitative tests were performed by means of spectroscopy of scattered X-ray energy using the Energy Dispersive Spectrometer (EDS). The Raman spectra of the samples were measured with a InVia Raman microscope by Renishaw. Magnetic properties of hematite nanoparticles were made using VSM magnetometer. Findings: Using VSM magnetometer proved that obtained material is mixture of ferromagnetic and superparamagnetic domain. Practical implications: Magnetic Nanoparticles (MNPs) has been gaining an incrementally increasing interest of scientists in the biomedical areas. Presented materials can be used in the hyperthermia phenomena which can be used in precise cancer treatment. Originality/value: Specific magnetic properties which determinate obtained material to be well for hyperthermia phenomena.
    Źródło:
    Archives of Materials Science and Engineering; 2021, 109, 2; 80--85
    1897-2764
    Pojawia się w:
    Archives of Materials Science and Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Al₂O₃/TiO₂ double antireflection coating deposited by ALD method
    Autorzy:
    Szindler, Marek
    Szindler, Magdalena M.
    Orwat, Justyna
    Kulesza-Matlak, Grażyna
    Powiązania:
    https://bibliotekanauki.pl/articles/2174838.pdf
    Data publikacji:
    2022
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    antireflection coating
    atomic layer deposition method
    solar cells
    Opis:
    Al₂O₃/TiO₂ thin films were deposited onto monocrystalline silicon surfaces using an atomic layer deposition. Their surface morphology and optical properties were examined for their possible use in solar cells. The surface condition and chemical composition were characterized using a scanning electron microscope and the thickness was measured using a spectroscopic reflectometer. The refractive index and the reflection characteristics were determined. First, the optical properties of the Al₂O₃ thin filmand its influence on recombination in the semiconductor were examined. In this way, it can fulfil a double role in a solar cell. Since reflection reduction was only achieved in a narrow range, it was decided to use the Al₂O₃/TiO₂ system. Thanks to this solution, the light reflection was reduced in a wide range (even below 0.2%).
    Źródło:
    Opto-Electronics Review; 2022, 30, 3; art. no. e141952
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Morphology of an ITO recombination layer deposited on a silicon wire texture for potential silicon/perovskite tandem solar cell applications
    Autorzy:
    Kulesza-Matlak, Grazyna
    Szindler, Marek
    Szindler, Magdalena M.
    Sypien, Anna
    Major, Lukasz
    Drabczyk, Kazimierz
    Powiązania:
    https://bibliotekanauki.pl/articles/27315696.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
    Tematy:
    tandem solar cell
    silicon nanowires
    MAE etching
    ITO
    recombination layer
    Opis:
    This paper presents research on the deposition of an indium tin oxide (ITO) layer which may act as a recombination layer in a silicon/perovskite tandem solar cell. ITO was deposited by magnetron sputtering on a highly porous surface of silicon etched by the metal-assisted etching method (MAE) for texturing as nano and microwires. The homogeneity of the ITO layer and the degree of coverage of the silicon wires were assessed using electron microscopy imaging techniques. The quality of the deposited layer was specified, and problems related to both the presence of a porous substrate and the deposition method were determined. The presence of a characteristic structure of the deposited ITO layer resembling a "match" in shape was demonstrated. Due to the specificity of the porous layer of silicon wires, the ITO layer should not exceed 80 nm. Additionally, to avoid differences in ITO thickness at the top and base of the silicon wire, the layer should be no thicker than 40 nm for the given deposition parameters.
    Źródło:
    Opto-Electronics Review; 2023, 31, 4; art. no. e148222
    1230-3402
    Pojawia się w:
    Opto-Electronics Review
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-14 z 14

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