Search results for "Electrical characterization"

showing 6 items of 6 documents

Custom measurement system for memristor characterisation

2021

Abstract A cheap, compact and customisable characterisation system for memristor devices, working between ± 10 V, is presented. SPICE (Simulation Program with Integrated Circuit Emphasis) simulations are performed to verify the circuit feasibility and a proper software is developed to drive the system. The potentiality of the realised system is tested by performing several electrical measurements on both Cu/HfO2/Pt memristors and two-terminals commercial devices.

010302 applied physicsComputer sciencebusiness.industrySystem of measurementSpiceEmphasis (telecommunications)02 engineering and technologyMemristorIntegrated circuit021001 nanoscience & nanotechnologyCondensed Matter PhysicsSettore ING-INF/01 - Elettronica01 natural sciencesElectronic Optical and Magnetic Materialslaw.inventionSoftwarelaw0103 physical sciencesMaterials ChemistryElectronic engineeringElectrical measurementsElectrical and Electronic EngineeringMemristor ReRAM electrical characterization system current compliance endurance retention0210 nano-technologybusinessSolid-State Electronics
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Experimental investigation and characterization of innovative bifacial silicon solar cells

2019

The interest towards bifacial PV technology has increased over the last years, due to its potential capability of obtaining higher efficiencies with respect to traditional monofacial cells. Thus, the aim of this work is to present an experimental investigation on an innovative photovoltaic technology, such as the bifacial solar cells based on monocrystalline substrate. This analysis is mainly based on the determination of the current density/voltage, power density/voltage, External Quantum Efficiency (EQE) and Laser Beam Induced Current (LBIC) characterization. Interesting results are presented and discussed, demonstrating that the bifacial silicon solar cells can be a very promising techno…

Bifacial solar cellSettore ING-IND/31 - ElettrotecnicaPERTSettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciLBICElectrical characterizationSettore ING-INF/01 - Elettronica
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Electrical characterization of CIGSSe photovoltaic modules

2017

This work describes the electrical characterization of CIG(S,Se) 2 sub-modules in order to compare the related performances with those obtained from traditional silicon photovoltaic modules. This characterization has been performed through means of a test bench, mainly composed by a solar simulator equipment, allowing the determination of the parameters of the prototypes under test at different irradiances and temperatures.

EngineeringTest benchSilicon020209 energyPV devicesEnergy Engineering and Power Technologychemistry.chemical_elementMechanical engineering02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti ElettriciTemperature measurementCIGSSe modules; electrical characterization Introduction; PV devices; Energy Engineering and Power Technology; Renewable Energy Sustainability and the EnvironmentCIGSSe module0202 electrical engineering electronic engineering information engineeringRenewable EnergySustainability and the EnvironmentRenewable Energy Sustainability and the Environmentbusiness.industryPhotovoltaic systemPV deviceelectrical characterization IntroductionEngineering physicsCharacterization (materials science)Settore ING-IND/31 - ElettrotecnicaSettore ING-IND/33 - Sistemi Elettrici per L'EnergiachemistryCIGSSe modulesSolar simulatorbusiness2017 6th International Conference on Clean Electrical Power (ICCEP)
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Electrical characterization of deoxyribonucleic acid hybridization in metal-oxide-semiconductor-like structures

2012

In this work, metal-oxide-semiconductor (MOS)-like sensors in which deoxyribonucleic acid (DNA) strands are covalently immobilized either on Si oxide or on a gold surface were electrically characterized. Si oxide fabrication process allowed us to have a surface insensitive to the solution pH. A significant shift in the flat band voltage was measured after single strand DNA immobilization (+0.47 +/- 0.04 V) and after the complementary strand binding (+0.07 +/- 0.02 V). The results show that DNA sensing can be performed using a MOS structure which can be easily integrated in a more complex design, thus avoiding the problems related to the integration of micro-electrochemical cells.

FabricationMaterials scienceComplementary strandPhysics and Astronomy (miscellaneous)OxideNanotechnologyElectrical characterizationSettore ING-INF/01 - ElettronicaComplex designSIO2 SURFACESMetalSi oxidechemistry.chemical_compoundCAPACITORSComplementary DNASolution pHFlat-band voltageMicro-electrochemical cellFIELD-EFFECT DEVICESMolecular biophysicsMetal oxide semiconductorDNAGold surfaceMOS structureIMMOBILIZATIONChemical engineeringchemistryFabrication proceCovalent bondvisual_artvisual_art.visual_art_mediumSingle strand DNABiosensorDNADNA sensing
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Application of electrochemical impedance for characterising arrays of Bi2S3 nanowires

2015

Abstract Electrochemical Impedance Spectroscopy (EIS) was used to characterise the electrical properties of bismuth sulphide (Bi2S3) nanowires (NWs) templated within anodic aluminium oxide (AAO) membranes. A specially engineered cell, with a nominal electrolyte volume of 0.1–0.2 ml, was used to hold and measure the electrochemical impedance of the fragile NW/AAO samples. An equivalent circuit model was developed to determine the filling density of nanowires within the porous templates. The EIS method can be utilised to probe the nanowire filling density in porous membranes over large sample areas, which is often unobtainable using electron microscopy and conductive atomic force microscopy t…

Materials scienceGeneral Chemical EngineeringNanowirechemistry.chemical_elementNanotechnologyGrowthElectrical characterizationBismuthchemistry.chemical_compoundElectrochemical Impedance SpectroscopyFabricationElectrodepositionElectrochemistryPorosityElectrical impedanceBismuth sulphideMetalTemplateConductive atomic force microscopyOxide nanowireDielectric spectroscopyNanostructuresNanowireMembranechemistryAluminium oxideAnodic aluminium oxide
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Enhanced operational stability through interfacial modification by active encapsulation of perovskite solar cells

2020

Encapsulates are, in general, the passive components of any photovoltaic device that provides the required shielding from the externally stimulated degradation. Here we provide comprehensive physical insight depicting a rather non-trivial active nature, in contrast to the supposedly passive, atomic layer deposition (ALD) grown Al2O3 encapsulate layer on the hybrid perovskite [(FA0.83MA0.17)0.95Cs0.05PbI2.5Br0.5] photovoltaic device having the configuration: glass/FTO/SnO2/perovskite/spiro-OMeTAD/Au/(±) Al2O3. By combining various electrical characterization techniques, our experimental observations indicate that the ALD chemistry produces considerable enhancement of the electronic conductiv…

Materials sciencePhysics and Astronomy (miscellaneous)electrical characterizationContinuous operationperovskitesIonic bonding02 engineering and technologyElectronic structurematerials degradation01 natural sciencesAtomic layer depositionPhotovoltaics0103 physical sciencesMaterialsCèl·lules fotoelèctriquesPerovskite (structure)010302 applied physicsbusiness.industry021001 nanoscience & nanotechnologyDielectric spectroscopycharge transportElectroquímicaphotovoltaicselectrochemical impedance spectroscopyvisual_artElectronic componentsolar cellsvisual_art.visual_art_mediumOptoelectronics0210 nano-technologybusiness
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