Question

Assuming having a crystal with a gap of 5.4 eV between the valence band and the conduction band.

What is the energy of the photon with the lowest energy that can be absorbed by the crystal?

Write the asnwer as (mantissa * 10 ^ (exp) JOULE), Mantissa is a real number in the interval [1.00000 , 9.99999) and exponetnial is an integer.

Answer 1