High-Performance Solid-State PbS Quantum Dot-Sensitized Solar Cells Prepared by Introduction of Hybrid Perovskite Interlayer

  • Jin Hyuck Heo
  • , Min Hyuk Jang
  • , Min Ho Lee
  • , Dong Hee Shin
  • , Do Hun Kim
  • , Sang Hwa Moon
  • , Sang Wook Kim
  • , Bum Jun Park*
  • , Sang Hyuk Im
  • *Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    19 Citations (Scopus)

    Abstract

    High-performance solid-state PbS quantum dot-sensitized solar cells (QD-SSCs) with stable 9.2% power conversion efficiency at 1 Sun condition are demonstrated by introduction of hybrid perovskite interlayer. The PbS QDs formed on mesoscopic TiO2 (mp-TiO2) by spin-assisted successive precipitation and anionic exchange reaction method do not exhibit PbSO4 but have PbSO3 oxidation species. By introducing perovskite interlayer in between mp-TiO2/PbS QDs and poly-3-hexylthiophene, the PbSO3 oxidation species are fully removed in the PbS QDs and thereby the efficiency of PbS QD-SSCs is enhanced over 90% compared to the pristine PbS QD-SSCs.

    Original languageEnglish
    Pages (from-to)41104-41110
    Number of pages7
    JournalACS Applied Materials and Interfaces
    Volume9
    Issue number47
    DOIs
    Publication statusPublished - 2017 Nov 29

    Bibliographical note

    Publisher Copyright:
    © 2017 American Chemical Society.

    Keywords

    • lead sulfide
    • passivation
    • perovskite
    • quantum dots
    • sensitized solar cells

    ASJC Scopus subject areas

    • General Materials Science

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