Patent ID: 11870220
Assignee: OTTO-VON-GUERICKE-UNIVERSITAT MAGDEBURG
Field: Optics (Instruments)
Classification: CPC H | IPC H

Claim 14:
15. A semiconductor layer stack comprising:
a succession of at least two layer packets, comprising at least a layer A and a layer B, which, as individual layers, each having an energy position of the Fermi level in the semiconductor band gap of applying to the layer A and applying to the layer B, with EF being the energy position of the Fermi level, EV the energy position of a valence band, EL the energy position of a conduction band and EL−EV the energy difference of the semiconductor band gap,
wherein a thickness of the layers A and B is selected such that a continuous space charge zone region over the layers A and B results,
wherein the layer A comprises a deep acceptor, and
wherein the layer B comprises a shallow donor.