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Search results for: curved graphene layers
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Imaging of graphene surface by means of tapping mode AFM
Open Research DataGraphene [1] is a material consisting of carbon planes with a hexagonal structure. One of the facts of interest from a purely scientific point of view is the very high mobility of electrons in the described material, allowing the study of relativistic effects inside a solid sample. Other features, such as bactericidal activity, make graphene an interesting...
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Graphene oxide thin films deposited on a PCB board - chemical analysis
Open Research DataGraphene oxides based films were measured by X-ray photoemission spectroscopy (XPS) method. TheXPS measurements were carried out with the Omicron NanoTechnology UHV equipment. The hemispherical spectrophotometer was equipped with a 128-channel collector. The XPS measurements were performed at room temperature at a pressure below 1.1 × 10−8 mBar. The...
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Electrical characteristics simulation of top-gated graphene field-effect transistor (GFET) with 10 μm x 10 μm graphene channel
Open Research DataThe presented data set is part of the research on graphene field-effect transistor (GFET) modelling. The calculations were performed with the use of GFET Tool program (https://nanohub.org/resources/gfettool DOI: 10.4231/D3QF8JK5T), which enabled simulation of the drain current (Id) vs. drain voltage (Vd) characteristics for different gate voltages (Vg)...
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Electrical characteristics simulation of top-gated graphene field-effect transistor (GFET) with 10 μm x 3 μm graphene channel
Open Research DataThe presented data set is part of the research on graphene field-effect transistor (GFET) modelling. The calculations were performed with the use of GFET Tool program (https://nanohub.org/resources/gfettool DOI: 10.4231/D3QF8JK5T), which enabled simulation of the drain current (Id) vs. drain voltage (Vd) characteristics for different gate voltages (Vg)...
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Tagged images with LEGO bricks - Bricks Curved
Open Research DataThe set contains images of LEGO bricks (from Bricks Curved category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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FTIR spectra and IGC chromatograms for chemically reduced graphene oxide aerogels (rGOA)
Open Research DataThe effect of selected synthesis parameters on reduced graphene oxide aerogels properties was investigated using Fourier-transform infrared spectroscopy and dynamic adsorption method (Inverse Gas Chromatography, IGC). Samples were synthesized by sol-gel method by reduction induced self-assembly of graphene oxide. As a reductant l-ascorbic acid was used....
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SEM analysis of the TiO2 layers deposited on a FTO substrates
Open Research DataTitanium dioxide layers were deposited on a FTO conducting glass by sol-gel method. For sol gel synthesis butoxy titanium and ethanol were used as a reagents. Samples were sintered in a furnace at temperature of 600 deg. SEM measurements were performed by FEI Quanta FEG250 microscope. SEM images of a cross-section of samples exhibit a porous structures...
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Hemocompatibility of nanocrystalline diamond layers
Open Research DataThe biocompatibility of the diamond films were investigated with whole human blood samples. Blood used in this study was drawn from 10 healthy human patients of different age, sex, and blood group. A 2 ml samples were collected into standard tubes with EDTA anticoagulation agent. Blood was used within 6 hours from the collection time. A reference blood...
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XRD (X-ray diffraction) patterns of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide), ex-WS2 (exfoliated tungsten disulfide) and GO (graphene oxide)
Open Research DataThese data contain XRD (X-ray diffraction) patterns of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide), ex-WS2 (exfoliated tungsten disulfide) and GO (graphene oxide). The data were collected for samples obtained from three ex-WS2:GO dispersions - with 1:1, 1:2, and 2:1 weight ratios.
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Tagged images with LEGO bricks - Tiles Round and Curved
Open Research DataThe set contains images of LEGO bricks (from Tiles Round and Curved category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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X-ray diffraction of ZnIn2S4 layers on TiO2NT and FTO annealed at different temperatures
Open Research DataData show XRD results for ZnIn2S4 layers deposited using hydrothermal method on FTO glass and TiO2 nanotubes. The layers were annealed in air atmosphere at 300, 400 and 500 oC.
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Tagged images with LEGO bricks - Plates Round Curved and Dishes
Open Research DataThe set contains images of LEGO bricks (from Plates Round Curved and Dishes category). The images were prepared for training neural network for recognition and labeling of LEGO bricks. The images contain one brick each. The images were taken from different sides by handheld camera hovering over the bricks lying on a white, non reflective surface.
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Depth XPS profile of Fe-S layers on a titanium substrate
Open Research DataDepth XPS profile of Fe-S layers on a titanium substrate was measured. Material was etched by Argon ion gun and measured by XPS method. For each sample, three times per 10 minutes each was sputtered.
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X-ray diffraction spectra of modification of TiO2 nanotubes by graphene - strontium and cobalt molybdate perovskite
Open Research DataData show XRD results for strontium and cobalt molybdate-modified nanotubes that were also decorated with graphene oxide. The crystalline phases were characterized by X-ray diffractometer (Philips X”Pert with detector X’Celerator Scientific).
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Electrochemical studies of Boron-Doped Diamond enriched Laser Induced Graphene structures
Open Research DataThis dataset contains electrochemical studies aimed to evaluate the capability of the utilization of laser-induced graphene (LIG) with incorporated boron-doped diamond nanowall (BDNW) hybrid nanostructures for microsupercapacitors. Selected results from this dataset were published in Advanced Functional Materials journal: https://doi.org/10.1002/adfm.202206097
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Electrical and noise responses of graphene back-gated field-effect transistors enhanced by UV light for organic vapors sensing
Open Research DataBack-gated field-effect transistors with graphene channels (GFETs) were investigated toward organic vapors sensing. Two methods were used for sensing experiments including DC characteristics measurements and fluctuation-enhanced sensing by low-frequency noise studies. The data set consists of raw and modified data on GFET responses to acetonitrile,...
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Electrical and noise responses of graphene/AlGaN/GaN field-effect transistor for nitrogen dioxide, teatrahydrofuran, and acetone sensing
Open Research DataThis data set consists of raw and modified data concerning current-voltage characteristics and low-frequency noise spectra measured for graphene/AlGaN/GaN field-effect transistor in the ambiance of selected gases (laboratory air, dry and wet synthetic air, nitrogen dioxide, tetrahydrofuran, and acetone). The data show that sensor responses are enhanced...
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Electrical responses of Graphene-Silicon Schottky diodes toward nitrogen dioxide and tetrahydrofuran under irradiation
Open Research DataGraphene-Silicon Schottky junctions were utilized as gas sensors toward inorganic (nitrogen dioxide) and organic (tetrahydrofuran) gas qualitative and quantitative detection. The electrical responses of the sensors were collected in the form of current-voltage characteristics and measurements of current in time domain for a selected voltage bias. The...
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Cyclic voltammograms of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide)
Open Research DataThese data contain cyclic voltammograms of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide). The data were collected for samples obtained from three ex-WS2:GO dispersions - with 1:1, 1:2, and 2:1 weight ratios.
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Raman spectra of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide)
Open Research DataThese data contain Raman spectra of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide). The data were collected for samples obtained from three ex-WS2:GO dispersions - with 1:1, 1:2, and 2:1 weight ratios.
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Electrical and noise responses of Graphene-Silicon Schottky diodes decorated with Au nanoparticles for light-enhanced sensing of organic gases
Open Research DataGraphene-Silicon Schottky junctions decorated with Au nanoparticles were used for light-enhanced detection of organic tetrahydrofuran and chloroform. Au nanoparticles exhibited localized surface plasmon resonance (LSPR) in the range of yellow light; thus yellow LED (wavelength of 592 nm) was utilized to induce the plasmonic effect, that increased the...
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The changes of outlet gases concentrations from SOFC with Ce(Pr,Sm)O2-s layers
Open Research DataThe dataset includes The changes of outlet gases concentrations from SOFC with Ce(Pr,Sm)O2-s layers. Samples were produced using aqueous soft chemistry methods (microemulsion method) and applied in form of a layer onto the anode of the commercial SOFC. The SOFC was working under biogas feeding.
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Galvanostatic cycling with potential limitation (GCPL) of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide)
Open Research DataThese data contain results of galvanostatic cycling with potential limitation (GCPL) of WS2/userGOx (composites of tungsten disulfide and ultrafast self-expanded and reduced graphene oxide) and ex-WS2 (exfoliated tungsten disulfide). The data were collected for samples obtained from three ex-WS2:GO dispersions - with 1:1, 1:2, and 2:1 weight ratios.
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Gold nanocubic structures functionalization with organic layers
Open Research DataThis dataset contains the XPS spectra obtained for gold nanocubes (AuNC), which were deposited at the gold electrode surface and dried. The AuNC's were first functionalized with either cysteamine in EtOH or mercaptopropionic acid in EtOH. The concentration of these compounds was 20 mM. The interaction of the functionalized with the AuNC surface was...
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XPS analysis of the GO based materials
Open Research DataGraphene oxides samples were measured by XPS method. The X-ray photoemission spectroscopy measurements were carried out with Omicron NanoTechnology UHV equipment. The hemispherical spectrophotometer was equipped with a 128-channel collector. The XPS measurements were performed at room temperature at a pressure below 1.1 × 10−8 mBar. The photoelectrons...
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Raman spectra for pyrolized natural compounds
Open Research DataThe presented data showcases the results of Raman spectroscopy analysis conducted on pyrolyzed natural compounds both with and without the inclusion of graphene. The study delved into four specific compounds: methylcellulose with lysine (ML), methylcellulose with lysine-graphene composite (MLG), algae (A), and algae-graphene composite (AG). Raman spectra...
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X-ray diffraction spectra of nitrogen-doped carbon in hybrid materials containing praseodymium oxide
Open Research DataX-ray powder diffraction patterns of samples were carried out by Philips X’Pert diffractometer, which was radiated by graphite monochromatized Cu Kα (l equal 1.540598). The operating voltage was maintained at 40 kV, the current was maintained at 30 mA and analyzed in the range from 20° to 90°. The data presented confirmed the presence of the PrBSCF...
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XPS investigations of tge tin/tin oxides - CNT composites
Open Research DataThe composite of tin/tin oxide nanoparticles with graphene oxide and CMC based on laser ablation technique as an electrode material for energy storage devices were manufactured. The material exhibited a three-dimensional conducting graphene oxide network decorated with tin or tin oxide nanoparticles. The presence of tin/tin oxide in composites was...
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Impedance and cyclic voltammetry studies of GPLA electrodes after laser ablation
Open Research DataThe 3D printed GPLA electrodes present a brand new opportunity for electrode material for electrochemical biosensors. In order for the electrodes to be considered viable for electroanalysis studies, the pretreatment procedure must be applied in order to etch PLA matrix and reveal graphene filler. The following dataset presents an approach towards such...
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Mechanical lithography in a polymer substrate using AFM in contact mode
Open Research DataMechanical lithography in a polymer substrate. Contact mode. NTEGRA Prima (NT-MDT) device. NSG 01 probe.
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SEM/EDX data of (Cr,Fe,Mn,Co,Ni)3O4 High-entropy spinel oxide thin films deposited on amorphous SiO2 substrate by spray pyrolysis techniqe
Open Research DataThis Data set include SEM and EDX results of (Mn,Co,Fe,Ni,Cr)3O4 high-entropy spinel oxide prepared in the form of a ~ 500 nm thin film utilising a facile spray pyrolysis technique. The structural and electrical properties of the layers were characterised after exposure to temperatures in the range of 400–900 ◦C. The as-deposited layers were amorphous,...
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TEM data of (Cr,Fe,Mn,Co,Ni)3O4 High-entropy spinel oxide thin films deposited on amorphous SiO2 substrate by spray pyrolysis techniqe
Open Research DataThis Dataset include presentation of summarized TEM investigation of (Mn,Co,Fe,Ni,Cr)3O4 high-entropy spinel oxide prepared in the form of a ~ 500 nm thin film utilising a facile spray pyrolysis technique. The structural and electrical properties of the layers were characterised after exposure to temperatures in the range of 400–900 ◦C. The as-deposited...
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Total electrical conductivity data of (Cr,Fe,Mn,Co,Ni)3O4 High-entropy spinel oxide thin films deposited on amorphous SiO2 substrate by spray pyrolysis techniqe
Open Research DataThis dataset includes electrical conductivity measurements results measured by van der pauw technique up to 900oC.
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Depth profile of the gold-silver bimetallic structures
Open Research DataSilver and gold bimetallic layers were deposited on a silicon substrate by magnetron sputtering method. Both, Au and Ag layers had 3 nm of thickness. That prepared nanostructures were measured by XPS method. To obtain a depth profile of chemical composition, an Argon ion (Ar+) gun was used for etching surface of sample. Each cycle of etching takes 30...
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Scanning electron microscopy (SEM) images of boron-doped diamond thin films at poly(lactic acid)
Open Research DataThe dataset contains the photos obtained by scanning electron microscope(SEM), revealing the surface morphology and cross-section of boron-doped diamond electrodes on commercially available graphene-doped polylactide acid. The boron doping level expressed as the [B]/[C] ratio in the gas phase for these studies was 500 and 10,000 ppm. The top views of...
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XRD data of (Cr,Fe,Mn,Co,Ni)3O4 High-entropy spinel oxide thin films deposited on amorphous SiO2 substrate by spray pyrolysis techniqe, annealed in a range from 400 to 900oC
Open Research DataDataset include collected XRD data of (Cr,Fe,Mn,Co,Ni)3O4 high-entropy spinel oxide thin films deposited by spray pyrolysis technique on amorphous SiO2 substrates and annealed from 400 to 900oC. Samples were prepared in the form of a ~ 500 nm thin film utilising a facile spray pyrolysis technique. The structural and electrical properties of the layers...
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Finite element models used in diagnostics of transverse cracks in bridge approach pavement
Open Research DataTransverse cracks in the asphalt pavement were observed on bridge structures next to single-module expansion joints with a 5 meter approach slab set at the depth of 1 m. The finite element (FE) models of the approach pavement were created to investigate the reasons of premature cracking and crack initiation mechanism over the back edge of the abutment...
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The scanning tunnelling micrographs of highly oriented pyrolytic graphite
Open Research DataThe dataset contains the results imaging of a sample of highly oriented pyrolytic graphite obtained using scanning tunneling microscopy. The above variant of scanning probe microscopy is one of the most convenient research techniques at atomic scales. The file contains images corresponding to increasing magnifications from the 1 um scale to a few nanometers....
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Optical transmission of the Niobium thin films
Open Research DataNiobium thin films with a thickness of 200nm were deposited n a Corning glass substrate by magnetron sputtering method. The optical transmission spectra in a visible light range were.recorded. Investigations showed a good optical transmission thru the layers for each samples, annealed at various temperatures. For measurements samples annealed at 500,...
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Electrical and noise responses of carbon nanotube networks enhanced by UV light for nitrogen dioxide sensing
Open Research DataNetworks consisting of randomly oriented carbon nanotubes (CNN) were investigated toward nitrogen dioxide detection by means of electrical and low-frequency noise measurements. UV-activation of CNN layers improved gas sensitivity and reduced the limit of detection, especially by employing 275 nm-LED. This data set includes DC resistance measurements...
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The AFM micrographs of vanadium oxides thin films deposited on quartz glass - the influence of the thickness of the thin film on its morphology
Open Research DataThe DataSet contains the atomic force microscope images of the surface of vanadium oxide thin films. The thin films were obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (1, 2 or 3 AsP layers) were deposited on a quartz glass substrate and were...
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The AFM micrographs of vanadium oxides thin films deposited on silicon - the influence of the thickness of the film on morphology
Open Research DataThe DataSet contains the atomic force microscope images of the surface of vanadium oxide thin films. The thin films were obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (1, 2 or 3 AsP layers) were deposited on a silicon substrate and were annealing...
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XRD patterns of VO2 and V2O3 thin films obtained at 500°C
Open Research DataThe DataSet contains the XRD patterns of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (3-9 AsP layers) were deposited on a silicon substrate and were annealing at 500°C under an argon atmosphere.
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XRD patterns of VO2 and V2O3 thin films obtained at 700°C
Open Research DataThe DataSet contains the XRD patterns of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (5-9 AsP layers) were deposited on a silicon substrate and were annealing at 700°C under an argon atmosphere.
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Electrical responses of nanostructured ZrS3 as field-effect transistor for nitrogen dioxide, ethanol, and acetone detection enhanced by visible light
Open Research DataSmall-area layers of nanostructured ZrS3 were fabricated and measured in the field-effect transistor configuration. Irradiation with visible light enabled generating photocurrent and increasing the sensitivity to selected ambient gases: nitrogen dioxide, ethanol, and acetone. The data set consists of electrical responses (current vs. voltage characteristics...
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SEM micrographs of morphology evolution of VO2 and V2O3 thin films obtained at 700°C
Open Research DataThe DataSet contains the scanning electron microscopy (SEM) micrographs of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (3-9 AsP layers) were deposited on a silicon substrate and were annealing at 700°C under an argon...
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SEM micrographs of morphology evolution of VO2 and V2O3 thin films obtained at 1000°C dependent on film thickness
Open Research DataThe DataSet contains the scanning electron microscopy (SEM) micrographs of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (2-3 AsP layers) were deposited on a silicon substrate and were annealing at 1000°C under an argon...
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SEM micrographs of morphology evolution of VO2 and V2O3 thin films obtained at 500°C
Open Research DataThe DataSet contains the scanning electron microscopy (SEM) micrographs of VO2 and V2O3 thin films obtained by the sol-gel method. The information about sol synthesis is described in the Journal of Nanomaterials. The thin films with different thicknesses (3-9 AsP layers) were deposited on a silicon substrate and were annealing at 500°C under an argon...
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Integrated circuit structure surface images obtained with contact capacitive imaging technique
Open Research DataThe measurements were done using NTEGRA Prima (NT-MDT) device. CSG 10Pt probe.
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Structural investigations of the Al2O3 ultra thin films
Open Research DataUltra-thin layers of Al2O3 were deposited by atomic layer deposition (ALD) (Beneq TFS 200 ALD system). This method provides precise thickness control down to a single atomic layer. The precursors used were trimethylaluminum (Sigma-Aldrich) and purified water. The deposition of the atomic layer was carried out at 200 °C. Samples with a thickness of 2...