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  • What is a solar cell ? Draw its V-I characteristics. Explain the three processes involved in its working.    

What is a solar cell ? Draw its V-I characteristics. Explain the three processes involved in its working.

 

 

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(c) (i) Generation of electron-hole pair due to light close to the junction, The energy of light > E_{g}

(ii) Separation of electrons to n side and hole to P side due to the electric field in the depletion region.

(iii) Collection; electrons reaching n side is collected by front contact and the holes reaching P side are collected by back contact. 

(c) (i) Generation of electron-hole pair due to light close to the junction, The energy of light > E_{g}

(ii) Separation of electrons to n side and hole to P side due to the electric field in the depletion region.

(iii) Collection; electrons reaching n side is collected by front contact and the holes reaching P side are collected by back contact. 

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