Patent ID: 9748426
Date: 2017-08-29
CPC Classifications: H01L,Y02E

Claim:
1. A monolithic multiple solar cell comprising essentially of elements of the 3rd and 5th main groups of the periodic table, wherein the multiple solar cell comprises at least three partial cells, wherein a semiconductor mirror is integrated below a GaInAs partial cell, wherein the semiconductor mirror has multiple layers with different refraction indices and/or material compositions and/or thicknesses, wherein a thickness of the layers of the semiconductor mirror is 10 nm≦d≦150 nm, wherein the semiconductor mirror comprises n layers with 10≦n≦50, a half-width value of the semiconductor mirror being 50 nm≦HWB≦300 nm, and wherein the semiconductor mirror has a higher reflection degree in one part of a spectral absorption range of the partial cell or partial cells arranged above the semiconductor mirror and has a higher transmission degree in the spectral absorption range of the partial cell or partial cells arranged below the semiconductor mirror.