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Surface Treatment Reagent for Perovskite Solar Cells: DMPESI

Superior PCE and device stability are realized by surface treatment of perovskite layer with DMPESI.

Surface Treatment Reagent for Perovskite Solar Cells: DMPESI

Advantages

  • Stronger bonding ability to perovskite surface than PEAI (= 2-Phenylethylamine Hydroiodide) 1)
  • Suppresses phase transition of FAPbI3 from α phase to δ phase
  • Improves device stability under high temperature and humidity or light soaking conditions by the suppression of ion migration and the influence of external atmosphere
  • Low water content (<200 ppm)

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Application

Perovskite solar cell device structure and comparison of solar cell performance using DMPESI

Figure. Perovskite solar cell device structure and comparison of solar cell performance using DMPESI 1)

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