Question

Write a one page report on Shockley Queisser Efficiency Limit.
Please include the mathematical treatment that was followed in this theoretical study to estimate the optimum band gap for the solar cell and the maximum efficiency for single junction. Please include the assumptions for used in this analysis and the main findings. Also briefly describe different approach to increase the efficiency of the solar cell beyond this limit

Answer 1

The Shockley - Quisser limit

- Shockley - Quisser efficiency limit refers to the calculation of the mathematical efficiency of solar cell made from a single p - n function.

Assumptions:-

1) Band gap loss effeciency factor- Efficiency if PV cell only affected by band Gap losses

Ts= temperature of the sun,

2) Geometric factor :- Solar cell is not on the surface of the sun, so it can't absorb all of the sun's radiant energy.

So, Power incident on P-V cell module

3) Entropy:- In addition to energy

Solar