Search
dr hab. inż. Barbara Hajduk
Employment
Research fields
Publications
Filters
total: 52
Catalog Publications
Year 2024
-
A Supramolecular Approach to Enhance the Optoelectronic Properties of P3HT-b-PEG Block Copolymer for Organic Field-Effect Transistors
Publication -
Temperature Coefficient of Electronic Polarizability in Thin Polymer Films Deposited on Si and SiO2 Substrates Determined via Spectroscopic Ellipsometry
PublicationEllipsometry is widely used to determine the thermo-optical properties of thin polymer films. However, if the thermo-optic coefficient (TOC) and the linear thermal expansion coefficient (LTEC) are to be used to determine the temperature coefficient of electronic polarizability (TCEP) in thin polymer films, their values must be determined with the greatest possible accuracy, as both have the opposite effect. In this article,...
-
Thermal and optical properties of P3HT:PC70BM:ZnO nanoparticles composite films
Publication -
Thermal Transitions and Structural Characteristics of Poly(3,4-ethylenedioxythiophene/cucurbit[7]uril) Polypseudorotaxane and Polyrotaxane Thin Films
PublicationHerein, we report the thermal transitions and structural properties of poly(3,4-ethylenedioxythiophene/cucurbit[7]uril) pseudopolyrotaxane (PEDOT∙CB7-PS) and polyrotaxane (PEDOT∙CB7-PR) thin films compared with those of pristine PEDOT. The structural characteristics were investigated by using variable-temperature spectroscopic ellipsometry (VTSE), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and atomic force...
Year 2023
-
Scientific Insight to Understanding the Internal Structure of Polymer/Small Molecules Thin Films
Publication -
Variable Temperature Spectroscopic Ellipsometry as a Tool for Insight into the Optical Order in the P3HT:PC70BM and PC70BM Layers
PublicationTwo combined ellipsometric techniques—variable angle spectroscopic ellipsometry (VASE) and variable temperature spectroscopic ellipsometry (VTSE)—were used as tools to study the surface order and dielectric properties of thin films of a poly(3-hexylthiophene-2,5-diyl) (P3HT) mixture with a fullerene derivative (6,6-phenyl-C71-butyric acid methyl ester) (PC70BM). Under the influence of annealing, a layer of the ordered PC70BM...
Year 2022
-
An Investigation of the Thermal Transitions and Physical Properties of Semiconducting PDPP4T:PDBPyBT Blend Films
Publication -
Hybrid nanolayers of star polymers and silver nanoparticles with antibacterial activity
Publication -
Phase behavior of π-conjugated polymer and non-fullerene acceptor (PTB7-Th:ITIC) solutions and blends
Publication -
The Investigation of Thermal and Optical Properties of Semiconducting Nanostructural Hybrid Films
Publication
Year 2021
-
Dispersion of thermo-optic coefficient of optical polymers
Publication -
Optyczna spektroskopia podczerwieni cienkich warstw FTIR - podstawy identyfikacji widm poliazometin
Publication -
The Influence of Magnetron Sputtering Process Temperature on ZnO Thin-Film Properties
Publication -
Thermal and optical properties of PMMA films reinforced with Nb2O5 nanoparticles
Publication
Year 2020
-
In situ thermo-optical studies of polymer:fullerene blend films
Publication -
Phase diagram of P3HT:PC70BM thin films based on variable-temperature spectroscopic ellipsometry
Publication -
Temperature-Dependent Spectroscopic Ellipsometry of Thin Polymer Films
Publication -
Thermal Transitions in P3HT:PC60BM Films Based on Electrical Resistance Measurements
Publication
Year 2019
-
Badanie rozkładu grubości powierzchni cienkich warstw metodą elipsometrii spektroskopowej
Publication -
Pomiar temperatury zeszklenia metodą zmiennotemperaturowej elipsometrii spektroskopowej
Publication -
Study of Photovoltaic Devices with Hybrid Active Layer
PublicationThe aim of this work is to present the influences of composition of the material andmanufacturing technology conditions of the organic photovoltaics devices (OPv) with the organicand hybrid bulk heterojunction on the active layers properties and cells performance. The layers wereproduced by using small molecular compounds: the metal-phthalocyanine (MePc) and perylenederivatives (PTCDA) and the titanium dioxide (TiO2) nanoparticles....
Year 2018
-
Manufacture of photovoltaic cells with hybrid organic–inorganic bulk heterojunction
Publication -
Moleculars Materials in Optoelectronics and Photovoltaic Devices
Publication -
Optical properties of phenylene–thiophene-based polyazomethine thin films
Publication -
P3HT:PCBM blend films phase diagram on the base of variable-temperature spectroscopic ellipsometry
Publication -
The Effect of Aromatic Diimide Side Groups on the π-Conjugated Polymer Properties
Publication -
Unveiling of polymer/fullerene blend films morphology by ellipsometrically determined optical order within polymer and fullerene phases
Publication
Year 2017
-
Effect of chemical structure and deposition method on optical properties of polyazomethines with alkyloxy side groups
Publication -
In situ optical studies of thermal stability of iodine-doped polyazomethine thin films
Publication -
Manufacturing and investigation of surface morphology and optical properties of composite thin films reinforced by TiO2, Bi2O3 and SiO2 nanoparticles
Publication
Year 2016
-
Manufacturing and investigation of physical properties of polyacrylonitrile nanofibre composites with SiO2, TiO2and Bi2O3nanoparticles
Publication -
The Influence of PEDOT to PSS Ratio on the Optical Properties of PEDOT:PSS Thin Solid Films - Insight from Spectroscopic Ellipsometry
Publication
Year 2015
-
Spectroscopic and microscopic study of Prussian blue film for electrochromic device application
Publication -
The impact of atomic layer deposition technological parameters on optical properties and morphology of Al 2 O 3 thin films
Publication
Year 2014
-
IR and microscopic studies of polyurethane surface in the polish extracorporeal ventricular assist device POLVAD-MEV
PublicationPurpose: The aim of this article is to show results of IR measurements and microscopicanalysis performed on layers prepared with dissolved VAD fragments and pieces ofventricular assist devices cut out of from determined VAD sectors.Design/methodology/approach: The objects of the study have been POLVAD-MEVVADs from POLCAS system. Four ventricular assist devices POLVAD-MEV have beeninvestigated with use M80 SPECORD IR spectrophotometer...
-
Sol-gel Al2O3 antireflection coatings for silicon solar cells
PublicationPurpose: This paper presents the results of investigations on morphology and opticalproperties of the prepared aluminium oxide thin filmsDesign/methodology/approach: Thin films were prepared with use of sol-gel spincoating method. The changes of surface morphology were observed in topographic picturesperformed with the atomic force microscope AFM. Obtained roughness coefficients valueswere generated...
Year 2013
Year 2012
-
Investigations of morphology and optical properties of thin films of TiOPc/PTCDA donor acceptor couple
PublicationPurpose: The aim of this work is studying surface topography and optical properties of organic thin films ofTiOPc and PTCDA blends deposited by thermal vacuum evaporation.Design/methodology/approach: Thin films of blends of organic materials are provided as donor/acceptorcouples in bulk heterojunction based organic solar cells. Thin films of TiOPc - PTCDA mixture have beendeposited by thermal vacuum evaporation from one source...
-
Stability of Diodes with Poly(3-hexylthiophene) and Polyazomethines Thin Organic Layer
Publication -
Temperature-dependent photoluminescence of polyazomethine films
Publication
Year 2011
-
A study of optical properties and annealing effect on the absorption edge of pristine- and iodine-doped polyazomethine thin films
Publication -
Influence of technological conditions on optical properties and morphology of spin-coated PPI thin films
PublicationPurpose: The aim of this paper is to show technical and chemical parameters influence on opticalproperties and morphology of poly (1,4-phenylenemethylenenitrilo- 1,4-phenylenenitrilomethylene) (PPI)thin films prepared by spin-coating methodDesign/methodology/approach: PPI thin films were prepared by spin-coating method with variousspinning rates and molar concentrations. The monomers, terephthal aledehyde (TPA) and p-phenylenediamine(PPDA),...
-
NEW ORGANIC MATERIALS FOR PHOTOVOLTAICS
PublicationThis report presents the results of investigations carried out for polymer- and low-weightmolecular materials prepared in the form of thin films by various methods, namely the thermalvacuum evaporation and chemical vapour deposition. The influence of the technologicalconditions on the structure, surface morphology, and electronic properties of selected organic thinfilms, including polyazomethines, phthalocyanines, and perylene...
-
Reconstruction of thin films polyazomethine based on microscopic images
PublicationPurpose: The aim of this paper was to investigate changes in surface morphology of thin films ofpolyazomethine PPI. Thin films were prepared using low-temperature chemical vapor deposition (CVD)method.Design/methodology/approach: The changes in surface topography was observed by the atomicforce microscope AFM and scanning electron microscope SEM. The results of roughness have beenprepared in the software WSxM NanoTec Spanish...
-
Studies of Transport Properties of Single Layer Devices Based on the Polyazomethine Thin Films
Publication
Year 2010
-
Comparing of optical properties and morphology of polyoxadiazoles with CF3 groups
PublicationPurpose: The aim of this paper is to compare optical properties of 4-(1,1,1,3,3,3-hexafluoro-2(-4(-3(4-(5-(4-m-tolyoxy)phenyl)-1,3,4-oxadiazol-2-yl)phenoxy)phenylcarbomyl)phenyl)propan2-yl)-N-methylbenzamide(Oxad 6F-D) and 4-(1,1,1,3,3,3-hexafluoro-2(-4-(4-(4-(5-(4-(p-tolyoxy)phenyl)-1,3,4-oxadiazol-2-yl)phenoxycarbaomyl)phenyl)propan-2-yl)-N-methylbenzamide (Oxad 6F-E).Design/methodology/approach: The Oxad 6F polymer thin films...
-
Studying of polyoxadiazole with Si atom in the backbone
PublicationPurpose: The aim of this paper is to show properties of spin-coated thin films of new polymer having siliconatom in the backbone. This amorphous polymer has appeared to be applied as active films in organic devices (asOLED).Design/methodology/approach: Thin films of 4-(diphenyl(4-(4-(5-(p-tolyoxy)phenyl)-1,3,4-oxadiazol-2-yl)phenyloamino)methyl)-phenyl)silyl)-1-methylbenzamide (Oxad–Si-B) were obtained by spin-coating method.The...
-
Tailoring electronic structure of polyazomethines thin films
PublicationPurpose: The aim of this work is to show how electronic properties of polyazomethine thin films deposited bychemical vapor deposition method (CVD) can be tailored by manipulating technological parameters of pristinefilms preparation as well as modifying them while the as-prepared films put into iodine atmosphere.Design/methodology/approach: The recent achievements in the field of designing and preparation methods tobe used while...
Year 2009
-
Influence of LCVD technologicalparameters on propertiesof polyazomethine thin films
PublicationPurpose: The aim of this paper is to show influence of technological parameters (temperature and gas streamintensity) of low-temperature chemical vapour deposition (LCVD) on optical properties and morphology ofpolyazomethine thin films.Design/methodology/approach: Thin layers of poly (1,4-phenylene-methylenenitrilo-1,4-phenylenenitrilo-methylene) (PPI) were prepared by low temperature LCVD method with use of argon as a transport...
-
Studying of spin-coated oxad-Si properties
PublicationPurpose: The major aim of this paper was describing technical conditions of polymer thin film deposition byspin-coating techniques.Design/methodology/approach: Thin films of about nanometres thickness were prepared by spin-coatingand their properties were studied. As a material for preparing polymer thin films oxad-Si was used. The thinfilms were deposited with various spinning velocity from solution of different concentration....
seen 822 times