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

    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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