Equivalent Circuits of Solar Cells, Fill Factor

In this video we have discussed about Equivalent model of Solar Cell, Fill Factor, Factors affecting Efficiency, Effect of series and shunt resistance, Effect of solar radiation on efficiency, Effect of Temperature on Efficiency, Losses in Solar Cells etc.

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As you mentioned, for Ideal case shunt resistance should be infinite, that means there should be many crystallographic defects and grain boundreis. How can it count for the higher efficiency if the crytallographic defects and grain boundries are more

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Io is printed in diode current equation.

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BBC News recite