Reproducible Dry Stamping Transfer of PEDOT:PSS Transparent Top Electrode for Flexible Semitransparent Metal Halide Perovskite Solar Cells

Jong Hwa Lee, Jin Hyuck Heo, Sang Hyuk Im, O. Ok Park

Research output: Contribution to journalArticle


A semitransparent flexible metal halide perovskite (MHP) solar cells were demonstrated by reproducible dry stamping transfer of a poly(3,4-ethylenedioxythiophene):poly(styrene sulfonic acid) (PEDOT:PSS, PH1000) transparent flexible top electrode onto poly(ethylene terephthalate) (PET)/indium tin oxide (ITO)/PEDOT:PSS (AI4083)/MHP/[6,6]-phenyl-C61-butyric acid methyl ester (PCBM). The reproducible transfer of the PEDOT:PSS top electrode was enabled by the modification of PEDOT:PSS with poly(ethylene imine) (PEI)/2-methoxyethanol (2-MEA) solution. In addition, the PEI/2-MEA modification to PEDOT:PSS resulted in improved conductivity and reduced work function of the top electrode. Therefore, we could fabricate highly efficient flexible semitransparent MHP solar cells with >13% (active area = 1 cm2) power conversion efficiency.

Original languageEnglish
Pages (from-to)10527-10534
Number of pages8
JournalACS Applied Materials and Interfaces
Issue number9
Publication statusPublished - 2020 Mar 4



  • flexible
  • perovskite solar cells
  • poly(ethyleneimine)
  • semitransparent
  • stamping transfer

ASJC Scopus subject areas

  • Materials Science(all)

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