Question

A photon of monochromatic light of wavelength 500 nm is absorbed on GaAs and excites an electron from the valence band to the conduction band. Assuming that, the electron and the hole masses are equal, calculate the kinetic energy of the electron and the hole. The band-gap of GaAs is 1.43 eV at room temperature.

Name: a photon of monochromatic light of wavelength 500 nm is absorbed on gaas and excites an electron from the valence band to the conduction band assuming that the electron and the hole masses a 15776
Uploaded: 2022-09-22T06:53:33-08:00
Duration: 1 min
Channel: Sri K
Description: a photon of monochromatic light of wavelength 500 nm is absorbed on gaas and excites an electron from the valence band to the conduction band assuming that the electron and the hole masses a 15776

          A photon of monochromatic light of wavelength 500 nm is absorbed
on GaAs and excites an electron from the valence band to the
conduction band. Assuming that, the electron and the hole masses
are equal, calculate the kinetic energy of the electron and the
hole. The band-gap of GaAs is 1.43 eV at room temperature.

Added by Calvin W.

University Physics with Modern Physics

Hugh D. Young 14th Edition

Instant Answer

Solved by Expert Sri K

09/22/2022

Step 1

The energy \( E \) of a photon is given by the equation: \[ E = \frac{hc}{\lambda} \] where \( h \) is Planck's constant (\( 6.626 \times 10^{-34} \, \text{J s} \)), \( c \) is the speed of light (\( 3 \times 10^8 \, \text{m/s} \)), and \( \lambda \) is the Show more…

Show all steps

Thanks for your feedback!

A photon of monochromatic light of wavelength 500 nm is absorbed on GaAs and excites an electron from the valence band to the conduction band. Assuming that, the electron and the hole masses are equal, calculate the kinetic energy of the electron and the hole. The band-gap of GaAs is 1.43 eV at room temperature.