Скачать или смотреть Promising materials for high efficiency dual-junction solar cells on silicon - EUPVSEC 2020

Multijunction solar cells on Si are a good candidate to low-cost / high-efficiency solar cells. Several innovative technologies to integrate III-V semiconductors to Si enabled efficiencies higher than 35%, but there is much
room for improvements. In this work, results of a theoretical study on the power conversion efficiency of series connected Si-based dual junction solar cells are presented, pointing out promising bandgap energies, and hence
materials, to compose highly efficient devices. In the used approach, a modification in the detailed balance model was performed to represent more realistic solar cells, including optical losses through the front side reflectivity and recombination losses through the external radiative efficiency of the junctions.