Patent ID: 8791358

Claim:
An energy generating device comprising: a daylight energy harvesting unit; a power management unit located in close physical proximity to and electrically connected to said daylight energy harvesting unit; and an infrared energy harvesting unit located in close physical proximity to and electrically connected to said power management unit; wherein said power management unit consists of a CMOS-based integrated circuit configured to manage and control the energy scavenged by said energy harvesting unit such that said power management unit regulates voltage output, wherein said power management unit comprises at least one capacitor for temporarily storing energy; wherein said daylight energy harvesting unit and said power management unit are bonded so as to be discretely integrated; wherein said infrared energy harvesting unit and said power management unit are bonded so as to be discretely integrated; wherein said daylight energy harvesting unit is stacked above said power management unit, and said power management unit is stacked above said infrared energy harvesting unit; wherein said daylight energy harvesting unit comprises an absorption material selected from the group consisting of Si, amorphous silicon, Si:Ge, GaN, GaAs, InGaAs, InP, CdTe, CdS, and polymer; and wherein said infrared energy harvesting unit comprises an absorption material selected from the group consisting of InGaAs, InP, InSb, and HgCdTe.