Solar Limitations

Who were the key figures involved in determining the limiting efficiency of solar cells?

• Albert Einstein and Niels Bohr

• Thomas Edison and Nikola Tesla

• Isaac Newton and James Clerk Maxwell

• William Shockley and Hans Chrysler

What is the primary reason that solar cell efficiency is limited to around 30%?

• The solar spectrum and semiconductor band gap

• The limited availability of sunlight

• The high cost of materials

• The inefficiency of current technology

What happens to photons with energy lower than the band gap in a solar cell?

• They are reflected back into the atmosphere

• They increase the temperature of the solar cell

• They pass through without being utilized

• They are absorbed and converted to electricity

Why can't solar cells achieve close to 100% efficiency with sunlight?

• Solar cells are too small

• Solar cells are too expensive

• Sunlight consists of multiple wavelengths

• Sunlight is not intense enough

What is a potential method to improve solar cell efficiency for different parts of the solar spectrum?

• Splitting the spectrum and using multiple cells with different band gaps

• Increasing the size of the solar cell

• Using mirrors to concentrate sunlight

• Using a single large solar cell