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iv curve for pv
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4713 IV Curve | PVEducation
wwwpveducationorgpvcdromsolar-cell-operationiv-curve 11
lt The photovoltaic effect Short-Circuit Current gt
Dark Saturation Current I0 = 1e-10 A
Light Generated Current IL = 05 A
Ideality Factor n = 1
Temperature T = 300 K
Voltage V = 05 V
Current A = 04753 A
lt The photovoltaic effect Short-Circuit Current gt
IV Curve
The IV curve of a solar cell is the superposition of the IV curve of the solar cell diode in the dark with the light-
generated current The light has the effect of shifting the IV curve down into the fourth quadrant where power
can be extracted from the diode Illuminating a cell adds to the normal dark currents in the diode so that the
diode law becomes
where IL = light generated current
The effect of light on the current-voltage characteristics of a p-junction
The equation for the IV curve in the first quadrant is
The -1 term in the above equation can usually be neglected The exponential term is usually gtgt 1 except for
voltages below 100 mV Further at low voltages the light generated current IL dominates the I0 () term so the -1
term is not needed under illumination
Light Biased IV Curve Calculator
Several important parameters which are used to characterise solar cells are discussed in the following pages The
short-circuit current (ISC) the open-circuit voltage (VOC) the fill factor (FF) and the efficiency are all parameters
determined from the IV curve
Christiana Honsbergand Stuart Bowden
Instructions
1 Introduction
2 Properties of Sunlight
3 PN Junction
4 Solar Cell OperationIdeal Solar CellsSolar Cell StructureLight Generated CurrentCollection ProbabilityQuantum EfficiencySpectral ResponseThe Photovoltaic Effect
Solar Cell ParametersIV CurveShort-Circuit CurrentOpen-Circuit VoltageFill FactorEfficiencyDetailed BalanceTandem Cells
Resistive EffectsCharacteristic ResistanceEffect of Parasitic ResistancesSeries ResistanceShunt Resistance
Other EffectsImpact of Both Series andShunt ResistanceEffect of TemperatureEffect of Light IntensityIdeality FactorChapter 4 Quiz
5 Design of Silicon Cells
6 Manufacturing Si Cells
7 Modules and Arrays
8 Characterization
9 Material Properties
AppendiciesKorean Version
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1
I = minus [exp( )]IL I0qV
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Lindholm FA Fossum JG Burgess EL Application of the superposition principle to solar-cell analysis IEEE Transactions on
Electron Devices 197926165ndash171
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