Tolerance of Perovskite Solar Cells to Targeted Proton Irradiation and Electronic Ionization Induced Healing

Brandon Durant, Hadi Afshari, Satybrata Singh, Bibhudutta Rout, Giles Eperon, Ian Sellers

Research output: Contribution to journalArticlepeer-review

43 Scopus Citations

Abstract

Mixed organic-inorganic halide perovskite solar cells (PSCs) are of interest for space photovoltaic applications due to their apparent tolerance to high-energy proton radiation. Here, the use of a more stable wide-bandgap FA0.8Cs0.2PbI2.4Br0.6Cl0.02 perovskite with thin encapsulation enables, for the first time, the detailed dependence of fluence and energy of energetic protons on device performance. Energies were chosen to provide the highest concentration of displacements within the active region, and therefore the highest amount of degradation. Not only are these devices tolerant when compared to conventional technologies, but an unexpected increase in open circuit voltage and power density is observed for increased electronic ionization when the proton energy is increased. This study aims to expand the description of the proton radiation tolerance to include not only nonionizing nuclear energy losses that are most detrimental to current technologies, but electronic ionization, which is shown to yield benefits in PSCs.
Original languageAmerican English
Pages (from-to)2362-2368
Number of pages7
JournalACS Energy Letters
Volume6
Issue number7
DOIs
StatePublished - 2021

NREL Publication Number

  • NREL/JA-5900-80519

Keywords

  • device performance
  • perovskite solar cells
  • PV applications
  • radiation
  • space applications

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