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RESEARCH PRODUCT
Electro-optical characterization of ruthenium-based dye sensitized solar cells: A study of light soaking, ageing and temperature effects
Antonino ParisiRiccardo PerniceAlfonso Carmelo CinoAndrea AndoAlessandro BusaccaVincenzo Franzittasubject
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 circuitPhotovoltaicdescription
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 device level has been carried out, giving a wealth of experimental data which can be very useful to better single out and quantify the underlying physical phenomena and the effects on the cell parameters, which are still controversial among the scientific community. Finally, the ageing study demonstrates that the cell performance rapidly deteriorates in the first few months of exposure to light. All the obtained results are of great importance for a better understanding of the light soaking phenomenon and for improving the fabrication process of the DSSCs investigated during this study.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2017-04-01 |