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 I-V characteristics of solar cell show a negative short circuit current. Is this negative value because of minority charge carriers or not. Is it possible to explain the working of solar cell as p-n junction diode. Negative SC current signifies that the power is being generated.
There are two causes of charge carrier motion and separation in a solar cell: diffusion of carriers from zones of higher carrier concentration to zones of lower carrier concentration (following a gradient of chemical potential). These two "forces" may work one against the other at any given point in the cell.
The short-circuit current (I SC) 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 ISC, the short-circuit current is shown on the IV curve below. I is due to the generation and collection of light-generated carriers. For an ideal PV cell with
Negative SC current signifies that thepower is being generated. If both the current and voltage are positive, it means that the power P=I*V is being consumed. You can see the VI characteristic of a solar cell. Photovoltaic mechanisms in polycrystalline thin film solar cells.
A string that is wired in short-circuit may be in that state due to being wired in reverse at the combiner. Figure 2 gives an example image of a safety incident that resulted from such an error.