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Progress and challenges for next-generation high-efficiency multijunction solar cells

2010; Elsevier BV; Volume: 14; Issue: 6 Linguagem: Inglês

10.1016/j.cossms.2010.07.001

1879-0348

Daniel J. Friedman,

Nanowire Synthesis and Applications

Multijunction solar cells are the most efficient solar cells ever developed with demonstrated efficiencies above 40%, far in excess of the performance of any conventional single-junction cell. This paper describes paths toward next-generation multijunction cells with even higher performance. Starting from fundamental multijunction concepts, the paper describes the desired characteristics of semiconductor materials for multijunction cells; the corresponding challenges in obtaining these characteristics in actual materials; and materials and device architectures to overcome these challenges.