The short-circuit current is the current through the solar cell when the voltage across the solar cell is zero (i.e., when the solar cell is short circuited). Usually written as I SC, the short-circuit current is shown on the IV curve below. IV curve of a solar cell showing the short-circuit current.
The short circuit current of the solar cell depends on the area of the cell. The output current is directly proportional to the cell area. Larger the cell area the amount of generated current is also large and vice versa.
Since the solar cell does not utilize light of different wavelengths with the same efficiency, a better way to estimate the total increment on short-circuit current is to weight the result with the photon flux Ф n of the solar spectrum and the external quantum efficiency E Q E ( λ) of the used solar cell.
We propose a method to quantify the influence from the backsheet area on the short-circuit current of a PV module. To verify and test our model, light beam induce current (LBIC) measurements are used to characterize the amount of light scattered at the backsheet and utilized by the solar cells.
While measuring the ISC, no-load should be connected across the two terminals of the module. To find the short circuit current of a photovoltaic module via multimer, follow the simple following steps. Make sure that one probe is connected to the COM port of multimeter and another to the current measuring port.
Since the middle cells receive less amount of light and limit the short circuit current of the PV module, in our large module simulation, we consider this effect by only taking the edge backsheet area within the gap size range in the corresponding direction to add to the total current increase.
A typical circuit for measuring I-V characteristics is shown in Figure-2. From this characteristics various parameters of the solar cell can be determined, such as: short-circuit current (I SC), the open-circuit voltage (V OC), the fill factor (FF) …