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Degradation mechanisms in organic photovoltaic devices

机译：有机光伏器件中的降解机理

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摘要

In the present review, the main degradation mechanisms occurring in the different layer stacking (i.e. photoactive layer, electrode, encapsulation film, interconnection) of polymeric organic solar cells and modules are discussed. Bulk and interfacial, as well as chemical and physical degradation mechanisms are reviewed, as well as their implications and external or internal triggers. Decay in I-V curves in function of time is usually due to the combined action of sequential and interrelated mechanisms taking place at different locations of the device, at specific kinetics. This often makes the identification of specific root causes of degradation challenging in non-model systems. Additionally, constant development and refinement in terms of type and combination of materials and processes render the ranking of degradation mechanisms as a function of their probability of occurrence and their detection challenging. However, it clearly appears that for the overall stability of organic photovoltaic devices, the actual photoactive layer, as well as the properties of the barrier and substrate (e.g. cut of moisture and oxygen ingress, mechanical integrity), remain critical. Interfacial stability is also crucial, as a modest degradation at the level of an interface can quickly and significantly influence the overall device properties.
机译：在本综述中，讨论了在聚合物有机太阳能电池和模块的不同层堆叠（即，光敏层，电极，封装膜，互连）中发生的主要降解机理。审查了体积和界面降解以及化学和物理降解机理，以及它们的影响以及外部或内部触发因素。 I-V曲线随时间变化的衰减通常是由于顺序和相互关联的机制在特定动力学上在设备的不同位置发生的组合作用所致。在非模型系统中，这通常使确定降解的​​特定根本原因变得困难。另外，在材料和过程的类型和组合方面不断的发展和完善使得降解机理的等级取决于其发生的可能性和检测的难度。然而，显然对于有机光伏器件的整体稳定性而言，实际的光敏层以及阻挡层和基底的性能（例如水分和氧气的进入，机械完整性的降低）仍然至关重要。界面稳定性也至关重要，因为界面水平的适度降级会迅速且显着影响整个器件的性能。

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  • 来源
    《Organic Electronics》 |2012年第3期|p.432-456|共25页
  • 作者

    Nadia Grossiord; Jan M. Kroon; Ronn Andriessen; Paul W.M. Blom;

  • 作者单位

    Hoist Centre/TNO, High Tech Campus 31, 5656 AE Eindhoven, The Netherlands;

    Energy Research Centre of The Netherlands (ECN), P.O. Box 1, 1755 ZG Petten, The Netherlands;

    Hoist Centre/TNO, High Tech Campus 31, 5656 AE Eindhoven, The Netherlands;

    Hoist Centre/TNO, High Tech Campus 31, 5656 AE Eindhoven, The Netherlands,Zemike Institute for Advanced Materials, University of Groningen, Nijenborgh 4, 9747 AG Groningen, The Netherlands;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    organic photovoltaics; degradation mechanisms; stability; lifetime;

    机译：有机光伏;退化机制;稳定性;一生;

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