Solar Limitations

What discovery at Bell Labs in the mid-fifties contributed to the development of solar cells?

What is the limiting efficiency of a solar cell according to the calculations done by William Shockley and Hans Chrysler?

Explain why the efficiency of solar cells is limited to around 30% instead of 100%.

What role does the band gap of a semiconductor play in the efficiency of solar cells?

How could the efficiency of solar cells be improved theoretically if we had a monochromatic light source?