0. A multijunction solar cell is a special type of solar cells. The multijunction solar cells can be found in two configurations: in parallel or in series/tandem . As for thin-film solar cells with heterojunctions, for enhanced performances all layers should have similar crystalline structures/lattice constants. Otherwise, the discontinuities in the lattice constants lead to defects or dislocations at the interface, which are preferred recombination sites.
1. are solar cells with multiple p–n junctions made of different semiconductor materials. Each material's p-n junction will produce electric current in response to different wavelengths of light.
[[GlossaryDefinition::2. [...],these solar cells are designed as multiple cells connected in series that collect light from different regions of the solar spectrum.]]
tandem solar cell
http://www.unescochair-hhf.ro/uploads/uploads/Daniela_Dragoman_Photovoltaics_4.pdf (0.); https://en.wikipedia.org/wiki/Multi-junction_solar_cell (1.); http://spie.org/newsroom/5201-better-measurement-of-multijunction-solar-cell-efficiency (2.)
Author: Michael Schaper