# Solar panel frequency range

What is a solar panel's frequency range (i.e. from THz to THz)? Is there a way to capture energy that exceeds that frequency range, either more towards IR or UV? If so, you could produce energy from sound, considering its frequency is 20-20,000Hz.

• I don't think that would work with sound even if the panel worked on those frequencies, since light is electromagnetic waves while sound are mechanical waves. – Frotaur Jan 1 '17 at 21:22
• To produce electric energy from sound, we use microphones ;-) – hdhondt Jan 1 '17 at 21:22
• The photon has to be above the band gap. Much higher and most of the energy is wasted. – Jon Custer Jan 1 '17 at 21:25