Monolithic Perovskite Tandem Solar Cells: A Review of the Present Status and Advanced Characterization Methods Toward 30% Efficiency

Abstract Tandem solar cells are the next step in the photovoltaic (PV) evolution due to their higher power conversion efficiency (PCE) potential than currently dominating, but inherently limited, single‐junction solar cells. With the emergence of metal halide perovskite absorber materials, the fabrication of highly efficient tandem solar cells, at a reasonable cost, can significantly impact the future PV landscape. The perovskite‐based tandem solar cells have already shown that they can convert light more efficiently than their standalone sub‐cells. However, to reach PCEs over 30%, several challenges have to be overcome and the understanding of this fascinating technology has to be broadened. In this review,…

• H
  Helmholtz-Gemeinschaft
• DF
  Deutsche Forschungsgemeinschaft

  Award: SPP 2196
• BF
  Bundesministerium für Bildung und Forschung

  Award: 03SF0540
• BF
  Bundesministerium für Wirtschaft und Energie

  Award: 0324037C
• HB
  Helmholtz-Zentrum Berlin für Materialien und Energie