Patent ID: 8022292
Filing Date: 2011-09-20
Classification: H01L,Y02E

Abstract:
1. A photovoltaic cell comprising: a positive lead for connecting to a load; a first DBR (Distributed Bragg Reflector) mirror connected to the positive lead and configured on top of the positive lead, the first DBR mirror further comprising n-doped semiconductor material; an absorption region configured on top of and juxtaposed to the first DBR mirror; a second DBR mirror configured on top of and juxtaposed to the absorption region, the second DBR mirror further comprising p-doped semiconductor material; a negative lead for connecting to a load, the negative lead configured on top of the second DBR mirror; and an amplification and gain region configured directly above the negative lead, the amplification and gain region for receiving incident photons, and thereby configuring the photovoltaic cell as a single stack, the amplification and gain region further comprising a quantum amplifier connected above the negative lead for receiving incident photons.