Toward All Room‐Temperature, Solution‐Processed, High‐Performance Planar Perovskite Solar Cells: A New Scheme of Pyridine‐Promoted Perovskite Formation

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Abstract
A new, all room-temperature solution process is developed to fabricate efficient, low-cost, and stable perovskite solar cells (PVSCs). The PVSCs show high efficiency of 17.10% and 14.19%, with no hysteresis on rigid and flexible substrates, respectively, which are the best efficiencies reported to date for PVSCs fabricated by room-temperature solution-processed techniques. The flexible PVSCs show a remarkable power-per-weight of 23.26 W g−1.
Funding Information
  • University of Hong Kong (104003113)
  • Food and Health Bureau (CAS14601)
  • Chinese Academy of Sciences
  • Office of Naval Research (N00014‐14‐1‐0170)

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