A 3-D model for concentrator solar cells based on distributed circuit units

A three-dimensional (3-D) distributed model for high-concentrator solar cells based on elementary units made up of electrical circuits is presented. The recombination mechanisms are dealt with in detail, paying special attention to the perimeter properties. No ohmic effect is omitted making this a p...

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Bibliographic Details
Published in:IEEE transactions on electron devices 2005-12, Vol.52 (12), p.2552-2558
Main Authors: Galiana, B., Algora, C., Rey-Stolle, I., Vara, I.G.
Format: Article
Language:English
Subjects:
Applied sciences
Computer simulation
Concentrators
Diodes
Electric circuits
Electronics
Energy
Exact sciences and technology
Gallium arsenide
Gallium compounds
Gallium materials/devices
Joints
Modeling
Natural energy
Optimization
Optoelectronic devices
photovoltaic (PV) cells
Photovoltaic cells
Photovoltaic conversion
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Solar cells
Solar cells. Photoelectrochemical cells
Solar energy
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Summary:A three-dimensional (3-D) distributed model for high-concentrator solar cells based on elementary units made up of electrical circuits is presented. The recombination mechanisms are dealt with in detail, paying special attention to the perimeter properties. No ohmic effect is omitted making this a powerful simulation tool for concentrator solar cells. A shunt resistance is also included. The model allows the simulation of the external connections and nonuniform illumination profiles making this model very useful for optimizing future structures and technological processes. The proposed 3-D model is compared with a lumped, two-diode model in the simulation of a GaAs solar cell operating from 1 to 2000 suns. It is found that the 3-D distributed model agrees satisfactorily with the experimental data for all concentrations. The agreement cannot be made simultaneously for both low and high concentrations for the lumped model.
ISSN:0018-9383
1557-9646
DOI:10.1109/TED.2005.859620