4 (a) For a p-n solar cell, draw the schematic diagrams of (a) device structure before and after the connection of p and

[answerhappygod]

4 A For A P N Solar Cell Draw The Schematic Diagrams Of A Device Structure Before And After The Connection Of P And 1 (90.31 KiB) Viewed 62 times

4 (a) For a p-n solar cell, draw the schematic diagrams of (a) device structure before and after the connection of p and n semiconductors, (b) the energy diagram at equilibrium and (c) under light irradiation. (10 marks) (b) For an organic solar cell, state the working principles with the assistance of showing the energy diagram of the solar cell. (7 marks) (c) What is the definition of fill factor of a solar cell? How to increase the fill factor of the planar heterojunction organic solar cells? (5 marks) (d) How to increase the short-circuit current of the planar heterojunction organic solar cells? (3 marks)