Abstract. A new generation of anode interlayers (AILs) has been introduced in recent years for improving the efficiency and stability of organic solar cell (OSC) devices. Electrode interlayer modification is a simple and effective way of enhancing OSC device performance. We used poly(vinyl pyrrolidone) (PVP) as an AIL modifier to alter molybdenum trioxide (MoO3) and vanadium pentoxide (V2O5) AILs in OSC devices and compared them with pure metal oxide AILs. Using this modification, average power conversion efficiencies were raised from 5.2 % ± 0.4 % to 6.0 % ± 0.3 % for OSCs with MoO3-based AILs, and from 6.2 % ± 0.1 % to 6.8 % ± 0.3 % for OSCs with V2O5-based AILs. Moreover, the PVP-metal oxide AILs also improved the overall device quality, producing a nanotextured morphology with good optical properties and favorable chemical composition. Beneficial wetting properties for interfacial adhesion between anode and active layer are observed using contact angle measurements. Overall, devices with PVP-modified metal oxide AILs showed promising results with greater device stability compared to pure metal oxide AIL-based OSC devices.

中文翻译：

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用于稳定有机太阳能电池的聚（乙烯基吡咯烷酮）改性金属氧化物阳极夹层

摘要。近年来，为了提高有机太阳能电池 (OSC) 器件的效率和稳定性，已经引入了新一代阳极夹层 (AIL)。电极夹层改性是提高 OSC 器件性能的一种简单有效的方法。我们使用聚乙烯吡咯烷酮 (PVP) 作为 AIL 改性剂来改变 OSC 设备中的三氧化钼 (MoO3) 和五氧化二钒 (V2O5) AIL，并将它们与纯金属氧化物 AIL 进行比较。使用此修改后，使用基于 MoO3 的 AIL 的 OSC 的平均功率转换效率从 5.2 % ± 0.4 % 提高到 6.0 % ± 0.3 %，使用基于 V2O5 的 AIL 的 OSC 的平均功率转换效率从 6.2 % ± 0.1 % 提高到 6.8 % ± 0.3 % . 此外，PVP-金属氧化物AIL还提高了整体器件质量，产生了具有良好光学性能和有利化学成分的纳米纹理形态。使用接触角测量观察阳极和活性层之间界面粘附的有益润湿特性。总体而言，与基于纯金属氧化物 AIL 的 OSC 器件相比，具有 PVP 修饰的金属氧化物 AIL 的器件显示出有希望的结果，具有更高的器件稳定性。