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

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11 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 TiO 2 (mp-TiO 2 ) by spin-assisted successive precipitation and anionic exchange reaction method do not exhibit PbSO 4 but have PbSO 3 oxidation species. By introducing perovskite interlayer in between mp-TiO 2 /PbS QDs and poly-3-hexylthiophene, the PbSO 3 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

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Keywords

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

ASJC Scopus subject areas

  • Materials Science(all)

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