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RESEARCH PRODUCT
On the Variability of the Temperature Coefficients of mc-Si Solar Cells with Irradiance
Jan Ove OddenCharly BerthodGeorgi Hristov YordanovHans G. BeyerRune Strandbergsubject
Temperature sensitivitySiliconPhysics::Instrumentation and DetectorsirradianceIrradiancechemistry.chemical_element02 engineering and technology01 natural sciencesOpticsEnergy(all)ideality factor.0103 physical sciencesSilicon solar cell010302 applied physicsChemistrybusiness.industryTemperature coefficientsfood and beverages021001 nanoscience & nanotechnologyComputational physicsLight intensitySolar cell efficiencysilicon solar cellscompensated siliconAstrophysics::Earth and Planetary Astrophysics0210 nano-technologyConstant (mathematics)businessVoltagedescription
Abstract The temperature sensitivity of silicon solar cells is in general assumed to be constant with irradiance in PV forecasting models, although it has been demonstrated experimentally that this is not true. In this study a theoretical model is established that describes the variation of the temperature coefficients of a silicon solar cell as a function of the irradiance. It is shown that the temperature sensitivity of the solar cell efficiency is decreasing with the irradiance and that the main reason for this behavior comes from the increase of the open-circuit voltage with light intensity. Moreover, a dependency of the cell's ideality factor on the irradiance has to be assumed to receive good modelling results that can be confirmed experimentally.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2016-08-01 | Energy Procedia |