Information beyond band structure

Photocurrent

Surface density of states

GaAs(110)
E_in = -0.75 eV (dangling bond).

The red circle is the path for the polar plots. The black lines show the Brillouin zones.

The radius represents the intensity.

The surface density of states shows possible (but not all) positions of maxima in the photocurrent.
Intensities are strongly modulated by other influences and smaller structures appear.

Claus-Henning Solterbeck, for references see here.

CAU Kiel Physics Theory Home Frontiers 30.5.1998

Information beyond band structure

Photocurrent

Surface density of states

The surface density of states shows possible (but not all) positions of maxima in the photocurrent. Intensities are strongly modulated by other influences and smaller structures appear.

The surface density of states shows possible (but not all) positions of maxima in the photocurrent.
Intensities are strongly modulated by other influences and smaller structures appear.