0000000000589759

AUTHOR

Kaspars Malnieks

showing 3 related works from this author

Tribovoltaic Device Based on the W/WO3 Schottky Junction Operating through Hot Carrier Extraction

2021

General EnergyMaterials sciencebusiness.industrySchottky barrierExtraction (chemistry)OptoelectronicsPhysical and Theoretical ChemistrybusinessSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsThe Journal of Physical Chemistry C
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Photocatalytic activity of non-stoichiometric ZnFe2O4under visible light irradiation

2014

Nanostructured zinc ferrites with different excess iron contents (ZnFe2+zO4, where z = 0.00, 0.05, 0.10 and 0.15) have been synthesized using the sol–gel auto-combustion method. The effect of excess iron on the structural, optical and visible light photocatalytic activity of zinc ferrite samples has been investigated. X-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), x-ray magnetic circular dichroism (XMCD), Brunauer–Emmett–Teller theory, scanning electron microscopy (SEM), diffuse reflectance spectroscopy (UV–Vis) and photoluminescence spectroscopy were used to characterize the synthesized non-stoichiometric ZnFe2O4 powders. The XRD patterns demonstrated that the samples con…

Materials scienceDiffuse reflectance infrared fourier transformMagnetic circular dichroismScanning electron microscopeAnalytical chemistrychemistry.chemical_elementZincCondensed Matter PhysicsAtomic and Molecular Physics and OpticsZinc ferritechemistryX-ray photoelectron spectroscopyCrystalliteSpectroscopyMathematical PhysicsPhysica Scripta
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Hybrid Tribo-Piezo-Electric Nanogenerator with Unprecedented Performance Based on Ferroelectric Composite Contacting Layers

2019

This research was supported by the European Regional Development Fund within the project ‘‘Hybrid energy harvesting systems’’ 1.1.1.1./16/A/013.

Materials sciencenanogeneratorsEnergy Engineering and Power Technology02 engineering and technology010402 general chemistry01 natural sciences7. Clean energylaw.inventionpoly(vinylidene fluoride)lawMaterials ChemistryElectrochemistry:NATURAL SCIENCES:Physics [Research Subject Categories]Chemical Engineering (miscellaneous)Electrical and Electronic EngineeringTriboelectric effectpiezoelectricityOpen-circuit voltagebusiness.industrytriboelectricityNanogeneratorElectrostatic induction021001 nanoscience & nanotechnologyPiezoelectricityFerroelectricityferroelectricity0104 chemical sciencesCapacitorOptoelectronics0210 nano-technologybusinessVoltageACS Applied Energy Materials
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