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High-Performance Multilayer Encapsulation for Perovskite Photovoltaics

机译：钙钛矿光伏高性能多层封装

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摘要

An encapsulation system comprising of a UV-curable epoxy, a solution processed polymer interlayer, and a glass cover-slip, is used to increase the stability of methylammonium lead triiodide (CH3NH3PbI3) perovskite planar inverted architecture photovoltaic (PV) devices. It is found this encapsulation system acts as an efficient barrier to extrinsic degradation processes (ingress of moisture and oxygen), and that the polymer acts as a barrier that protects the PV device from the epoxy before it is fully cured. This results in devices that maintain 80% of their initial power conversion efficiency after 1000 h of AM1.5 irradiation. Such devices are used as a benchmark and are compared with devices having initially enhanced efficiency as a result of a solvent annealing process. It is found that such solvent-annealed devices undergo enhanced burn-in and have a reduced long-term efficiency, a result demonstrating that initially enhanced device efficiency does not necessarily result in long-term stability.
机译：由紫外线可固化的环氧树脂，溶液处理的聚合物夹层和玻璃盖玻片组成的封装系统可用于提高钙钛矿型平面倒置结构光伏（PV）器件的三碘化铅铵（CH3NH3PbI3）的稳定性。发现该封装系统可作为外在降解过程的有效屏障（水分和氧气的侵入），并且聚合物可充当屏障，在环氧树脂完全固化之前保护PV器件免受环氧影响。这使得器件在AM1.5辐照1000小时后仍保持其初始功率转换效率的80％。这种装置被用作基准，并且与由于溶剂退火工艺而具有最初增强的效率的装置进行比较。业已发现，这种溶剂退火的器件具有增强的老化和降低的长期效率，其结果表明，最初提高的器件效率并不一定导致长期的稳定性。

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  • 来源
    《Advanced energy materials》 |2018年第24期|1801234.1-1801234.11|共11页
  • 作者

    Wong-Stringer Michael; Game Onkar S.; Smith Joel A.; Routledge Thomas J.; Alqurashy Bakhet A.; Freestone Benjamin G.; Parnell Andrew J.; Vaenas Naoum; Kumar Vikas; Alawad Majed O. A.; Iraqi Ahmed; Rodenburg Cornelia; Lidzey David G.;

  • 作者单位

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Taibah Univ, Dept Basic Sci & Technol, Community Fac, Al Madina Al Mounawara 30002, Saudi Arabia;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

    Univ Sheffield, Dept Mat Sci & Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England;

    Univ Sheffield, Dept Chem, Brook Hill, Sheffield S3 7HF, S Yorkshire, England;

    Univ Sheffield, Dept Chem, Brook Hill, Sheffield S3 7HF, S Yorkshire, England;

    Univ Sheffield, Dept Mat Sci & Engn, Mappin St, Sheffield S1 3JD, S Yorkshire, England;

    Univ Sheffield, Dept Phys & Astron, Hicks Bldg,Hounsfield Rd, Sheffield S3 7RH, S Yorkshire, England;

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  • 正文语种 eng
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  • 关键词

    encapsulation; epoxy; lifetime; perovskite solar cells; PVP; solvent anneal; stability; T80;

    机译：封装;环氧树脂;寿命;钙钛矿太阳能电池;PVP;溶剂退火;稳定性;T80;

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