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In Situ Atmospheric Deposition of Ultrasmooth Nickel Oxide for Efficient Perovskite Solar Cells.

Author information

Affiliations

  • 1. Cavendish Laboratory , University of Cambridge , JJ Thomson Avenue , Cambridge CB3 0HE , United Kingdom.
      Authors
    • Zhao B 1
    • Yang L 1
    • Pearson AJ 1
    • Lu H 1
    • She XJ 1
    • Cui L 1
    • Hoye RLZ 1
    • Karani A 1
    • Xu P 1
    • Sadhanala A 1
    • Greenham NC 1
    • Friend RH 1
    • Di D 1
    (13 authors)
  • 2. Department of Materials Science & Metallurgy , University of Cambridge , 27 Charles Babbage Road , Cambridge CB3 0FS , United Kingdom.
      Authors
    • Lee LC 2
    • Zhang KHL 2
    • MacManus-Driscoll JL 2
    (3 authors)

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ACS Applied Materials & Interfaces, 29 Nov 2018, 10(49):41849-41854
https://doi.org/10.1021/acsami.8b15503 PMID: 30461255 

Abstract 

Organic-inorganic perovskite solar cells have attracted significant attention due to their remarkable performance. The use of alternative metal-oxide charge-transport layers is a strategy to improving device reliability for large-scale fabrication and long-term applications. Here, we report solution-processed perovskite solar cells employing nickel oxide hole-extraction layers produced in situ using an atmospheric pressure spatial atomic-layer deposition system, which is compatible with high-throughput processing of electronic devices from solution. Our sub-nanometer smooth (average roughness of ≤0.6 nm) oxide films enable the efficient collection of holes and the formation of perovskite absorbers with high electronic quality. Initial solar-cell experiments show a power-conversion efficiency of 17.1%, near-unity ideality factors, and a fill factor of >80% with negligible hysteresis. Transient measurements reveal that a key contributor to this performance is the reduced luminescence quenching trap density in the perovskite/nickel oxide structure.

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Read article at publisher's site: https://doi.org/10.1021/acsami.8b15503

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Funding 

Funders who supported this work.

Agency for Science, Technology and Research

    China Scholarship Council

      Engineering and Physical Sciences Research Council (2)

      University of Cambridge