Search results for "Dye Sensitized Solar Cells"

showing 6 items of 6 documents

Electro-optical characterization of ruthenium-based dye sensitized solar cells: A study of light soaking, ageing and temperature effects

2017

Abstract In this work, we report on the electro-optical characterization of Dye Sensitized Solar Cells (DSSCs) which use ruthenium complexes as sensitizers. In particular, several kinds of measurements have been performed to study the electrical performances and the efficiency levels of the cells at different operating conditions. In detail, the measurements have been conducted at varying temperatures and hours of light soaking. Our results show that the short circuit current density J SC , the open circuit voltage V OC and the conversion efficiency η increase with the hours of light soaking, while they decrease with temperature. A thorough investigation on the light soaking process at the …

Dye sensitized solar cells (DSSCs)FabricationMaterials sciencechemistry.chemical_element02 engineering and technology010402 general chemistry01 natural sciencesSettore ING-INF/01 - ElettronicaPhotovoltaicsElectrical and Electronic Engineeringbusiness.industryOpen-circuit voltageEnergy conversion efficiencySettore ING-INF/02 - Campi ElettromagneticiLight soaking021001 nanoscience & nanotechnologyElectro-optical characterizationsAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic MaterialsRutheniumCharacterization (materials science)Dye-sensitized solar cellchemistryOptoelectronics0210 nano-technologybusinessShort circuitPhotovoltaic
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One diode circuital model of light soaking phenomena in Dye-Sensitized Solar Cells

2018

Abstract In this work, we report on the modelling of light soaking effect on Ruthenium-based Dye Sensitized Solar cells (DSSCs). Such a phenomenon can be detected when exposing the cells at increasing hours of illumination and produces a reversible performance increase. Starting from the results obtained through the electro-optical characterization of the cells, we applied a one-diode circuital-model. Our results show a good agreement between the experimental and the simulated data, with a mean square error in the order of 10−12 and a maximum error in current lower than 0.6%. Finally such results allowed us to infer some precise trends followed by the cells main electrical parameters and of…

Dye sensitized solar cells (DSSCs)Materials scienceAtomic and Molecular Physics and OpticElectrical modelchemistry.chemical_element02 engineering and technologyElectro-optical characterization010402 general chemistry01 natural sciencesMaximum errorSettore ING-INF/01 - ElettronicaPhotovoltaicsParameters estimationElectrical and Electronic EngineeringDiodebusiness.industryElectronic Optical and Magnetic MaterialLight soaking021001 nanoscience & nanotechnologyAtomic and Molecular Physics and Optics0104 chemical sciencesElectronic Optical and Magnetic MaterialsRutheniumDye-sensitized solar cellchemistrySimulated dataOptoelectronics0210 nano-technologybusinessOne-diode modelPhotovoltaic
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Fabrication and electro-optical characterization of Ruthenium-based Dye-Sensitized Solar Cells

2015

In this paper, we measure the main photoelectrical parameters of Dye Sensitized Solar Cells (DSSCs) based on ruthenium complexes at different irradiance levels, incident wavelengths, temperatures and hours of light soaking

Laser Beam Induced Current (LBIC)Dye Sensitized Solar cells (DSSCs)electro-optical characterizationSettore ING-INF/02 - Campi ElettromagneticiPhotovoltaicSettore ING-INF/01 - Elettronica
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Experimental characterization of Ruthenium-based Dye Sensitized Solar Cells and study of light-soaking effect impact on performance

2016

In this paper, we present an experimental investigation on the performance of Ruthenium-based Dye Sensitized Solar Cells (DSSCs) at different irradiance levels, incident wavelengths and hours of illumination. In particular, the measurements have been aimed at studying the performance variation due to light soaking effect since this phenomenon has noteworthy practical implications, such as stability tests of DSSCs. Our results show that the short circuit current density, the open circuit voltage and the conversion efficiency η increase with the hours of light soaking. Finally, the observed phenomenon is reversible, and thus the performance decreases again when the cell is kept in the dark.

Laser Beam Induced Current (LBIC)Materials scienceIrradiancechemistry.chemical_element02 engineering and technology01 natural sciencesSettore ING-INF/01 - Elettronicaphotovoltaic0103 physical sciences010302 applied physicsDye Sensitized Solar cells (DSSCs)electro-optical characterizationbusiness.industryOpen-circuit voltageEnergy conversion efficiencySettore ING-INF/02 - Campi Elettromagneticilight soaking021001 nanoscience & nanotechnologyCharacterization (materials science)RutheniumWavelengthDye-sensitized solar cellchemistryOptoelectronics0210 nano-technologybusinessShort circuit
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Le Tecnologie Fotovoltaiche

2011

Settore CHIM/06 - Chimica OrganicaDye Sensitized Solar Cells Ionic Liquid Crystals
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Anomalous electrical parameters improvement in Ruthenium DSSC

2018

. In this work, we present a series of measurements carried out on Ruthenium-based Dye Sensitized Solar Cells (DSSCs) after the application of different external electrical field values. Such measurements have been performed both in the dark and by illuminating the sample with sunlight emitted by a solar simulator (AM1.5G spectrum with a power irradiance of 1000 W/m2). Our results demonstrate that the initial electrical bias field modifies in both cases the behavior of the cell in terms of an anomalous improvement of the main electrical parameters.

hysteresiMaterials scienceField (physics)Irradiancechemistry.chemical_element02 engineering and technologySettore ING-IND/32 - Convertitori Macchine E Azionamenti Elettrici01 natural sciencesSettore ING-INF/01 - Elettronica010309 optics020210 optoelectronics & photonics0103 physical sciences0202 electrical engineering electronic engineering information engineeringSunlightbusiness.industryRenewable Energy Sustainability and the EnvironmentBiasingperformance improvementRuthenium dyeDye Sensitized Solar Cells (DSSCs)RutheniumDye-sensitized solar cellHysteresischemistryAutomotive EngineeringOptoelectronicsSolar simulatorbusiness
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