Inverted multi-junction metamorphic solar cell (IMM solar cell) and related manufacturing process

摘要

An IMM solar cell and an associated method of manufacturing an IMM solar cell are provided. In the context of a method, a first subcell may be formed on a temporary substrate, and a second subcell may be formed on the first subcell. The second subcell may have a smaller bandgap than the first subcell. The method may further bond the first and second sub-cells to a silicon subcell and then remove the temporary substrate. In the context of an IMM solar cell, the IMM solar cell includes first and second subcells, wherein the first subcell is disposed on the second subcell and the second subcell has a smaller bandgap than the first subcell. The IMM solar cell may further include a silicon subcell carrying the first and second subcelles with a metal to metal bond between the silicon subcell and the second subcell.