Patent ID: 8952354
Filing Date: 2015-02-10
Classification: H01L,Y02E,Y10S

Abstract:
1. A multi-junction photovoltaic cell for converting light into electrical energy, comprising a substrate having a surface and a dielectric layer comprising a plurality of holes, wherein a plurality of doped regions at the surface of the substrate are doped such that plurality of first p-n junction -are formed in the substrate wherein: each of said plurality of doped regions at the surface of the substrate is centered on the respective one of the plurality of holes, a plurality of nanowires are arranged on the surface of the substrate at respective positions where the respective doped regions are located in the substrate, such that a geometrical axis defined by a longitudinal direction of each of the plurality of the nanowires extends through the center of the respective one of the plurality of doped regions, and a plurality of second p-n junctions are formed at each of the plurality of the nanowires and in series connection with the each of the plurality of the first p-n junctions.