Efficient Inverted Perovskite Solar Cells Using Dual Fluorinated Additive Modification

Hui Li, Ronan Chu, Abdulaziz S. R. Bati, Satakshi Gupta, Paul L. Burn, Ian R. Gentle, Paul E. Shaw

Research output: Contribution to journalArticlepeer-review

1 Scopus citations


Materials engineering is key to improving the stability and photovoltaic parameters of inverted perovskite solar cells (PSCs). This work presents the effect of two different fluorinated additives on the performance of PSCs containing the archetypal three-dimensional perovskite, methylammonium lead triiodide (MAPbI3). 3-(2,3,4,5,6-Pentafluorophenyl)propylammonium iodide (FPAI) is added to the anode modifying layer and (2,3,4,5,6-pentafluorophenyl)methylammonium bromide (FMABr) is blended into the perovskite layer. The inverted devices containing FPAI in the anode modifying layer and 0.32 mol% of FMABr from the perovskite precursor solution had hysteresis-free current density-voltage characteristics and a maximum power conversion efficiency of 22.3%, which is an absolute increase of 1.7% compared to the MAPbI3 device (20.6%) of the same architecture but without the additives.
Original languageEnglish (US)
JournalAdvanced Materials Interfaces
StatePublished - Apr 8 2023
Externally publishedYes

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering


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