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RESEARCH PRODUCT
Analytical Expressions for Radiative Losses in Solar Cells
Alfredo Sanchez GarciaRune Strandbergsubject
PhysicsWork (thermodynamics)Stefan–Boltzmann lawMaximum power principleEnergy flux02 engineering and technology021001 nanoscience & nanotechnology01 natural sciencesExpression (mathematics)Computational physicssymbols.namesake0103 physical sciencesBoltzmann constantsymbolsRadiative transfer010306 general physics0210 nano-technologyCarnot cycledescription
Analytical expressions for the fundamental losses in single junction solar cells are revised and improved. The losses are, as far as possible, described using parameters with clear physical interpretations. One important improvement compared to earlier work is the use of Lambert’s W function, which allows for analytical expressions for the voltage and current at the maximum power point. Other improvements include the use of Stefan Boltzmann’s law to describe the incoming energy flux as well as taking into account the fermionic nature of the electrons when calculating the thermalization loss. A new expression, which combines emission, Boltzmann and Carnot losses, is presented. Finally, an expression which combines all energy losses derived in this work is presented.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2019-06-01 | 2019 IEEE 46th Photovoltaic Specialists Conference (PVSC) |