4.7 Article

Photodeposited Polyamorphous CuOx Hole-Transport Layers in Organic Photovoltaics

期刊

ACS APPLIED ENERGY MATERIALS
卷 4, 期 11, 页码 12900-12908

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsaem.1c02577

关键词

hole-transport layer; polyamorphism; organic photovoltaics; copper oxides; photodeposition; low-cost processing; low-cost roll-to-roll processing; Unfortunately; solution pro-

资金

  1. Alberta Innovates (Strategic Research Project grant)
  2. Natural Sciences and Engineering Research Council of Canada (NSERC)
  3. University of Calgary
  4. Canadian Foundation for Innovation (John R. Evans Leaders Fund)
  5. Research Tool and Instruments Grant Program of the NSERC
  6. NSERC
  7. Canada Foundation for Innovation (CFI)
  8. Natural Sciences and Engineering Research Council (NSERC)
  9. National Research Council (NRC)
  10. Canadian Institutes of Health Research (CIHR)
  11. Government of Saskatchewan
  12. University of Saskatchewan

向作者/读者索取更多资源

The study reports the fabrication of amorphous aCuOx thin films using a UV-based thin-film deposition method from commercially available starting materials, which exhibit p-type semiconductor behavior after thermal annealing and can be used as HTLs in organic photovoltaic devices.
Hole-selective charge-transport layers are an important part of modern thin-film electronics, serving to direct electron flow and prevent leakage current. Crystalline metal-oxide hole-transport layers (HTLs) such as NiO and CuOx exhibit high performance and stability. However, they are traditionally not amenable to scalable and sustainable solution-processing techniques. Conversely, amorphous metal oxides are much more readily prepared by low-temperature solution processing methods but often lack the charge-transport properties of crystalline semiconductors. Herein, we report the fabrication of amorphous aCuOx thin films from commercially available starting materials using a simple UV-based thin-film deposition method. Subsequent thermal annealing of the a-CuOx induces an amorphous-to-amorphous phase transition, resulting in p-type semiconducting behavior. The resulting thin films were used as HTLs in organic photovoltaic devices with power conversion efficiencies comparable to those low-temperature thin-film deposition

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