articleScienceJan 26, 2023GREEN OA

Highly efficient p-i-n perovskite solar cells that endure temperature variations

GLGuixiang LiZSZhenhuang SuLCLaura CanilDHDeclan HughesMHMahmoud H. Aldamasy

Helmholtz-Zentrum Berlin für Materialien und Energie · Chinese Academy of Sciences · +10 more institutions

PubMed
Indexed incrossrefpubmed

Abstract

Daily temperature variations induce phase transitions and lattice strains in halide perovskites, challenging their stability in solar cells. We stabilized the perovskite black phase and improved solar cell performance using the ordered dipolar structure of β-poly(1,1-difluoroethylene) to control perovskite film crystallization and energy alignment. We demonstrated p-i-n perovskite solar cells with a record power conversion efficiency of 24.6% over 18 square millimeters and 23.1% over 1 square centimeter, which retained 96 and 88% of the efficiency after 1000 hours of 1-sun maximum power point tracking at 25° and 75°C, respectively. Devices under rapid thermal cycling between -60° and +80°C showed no sign of…

Citation impact

536
total citations
FWCI
66.61
Percentile
100%
References
51
Citations per year

Authors

26

Topics & keywords

Topics
Keywords
  • Perovskite (structure)
  • Energy conversion efficiency
  • Materials science
  • Halide
  • Crystallization
  • Thermal stability
  • Solar cell
  • Dipole
UN Sustainable Development Goals
  • Affordable and clean energy
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