Patent ID: 11908963
Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
Field: Semiconductors (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 4:
5. The photovoltaic device according to claim 1, wherein an energy comprising 2ℏ(Δωc+Δωv) and corresponding to a width of the stopband of a given amorphous photovoltaic material included in the alternating layers of different amorphous photovoltaic materials is twice the sum of:
a first energy change ℏΔωc that corresponds to the extent of the conduction band tail region of a given amorphous photovoltaic material included in the alternating layers of different amorphous photovoltaic materials; and
a second energy change ℏΔωv that corresponds to the extent of the valence band tail region of a given amorphous photovoltaic material included in the alternating layers of different amorphous photovoltaic materials.