Draw a circuit diagram to show biasing of a solar cell. Draw its characteristic curve and explain it

Draw a circuit diagram to show biasing of a solar cell. Draw its chara

1.	Draw a circuit diagram to show biasing of a solar cell. Draw its characteristic curve and explain it
Answer» Solution :A circuit diagram showing biasing of a TYPICAL p-n junction solar cell has been GIVEN in When light (with photon ENERGY hv ` gt E_(g)`) falls at the junction, electron-hole pairs are generated which MOVE in mutually opposite directions due to the junction field. Ifno external load is connected or if the circuit of solar cell is open, electrons and holes are collected at the two sides of the junction giving a photo-voltage `V_(oc)` . When external load R is connected, a photo-current `I_(L)`flows. For R = 0, the current has a maximum value `I_(sc)` which is known as short circuit current. V- I characteristics is shown in . The graph is in the fourth quadrant because a solar cell does not draw current but supplies current to the load.

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Draw a circuit diagram to show biasing of a solar cell. Draw its characteristic curve and explain it

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