Scalable production methods and low-cost materials with low embodied energy are key to success for organic solar cells. PEDOT(PSS) electrodes meet these criteria and allow for low-cost and all solution-processed solar cells. However, such devices are prone to shunting. In this work we introduce a roll-to-roll lamination method to construct semitransparent solar cells with a PEDOT(PSS) anode and an polyethyleneimine (PEI) modified PEDOT(PSS) cathode. We use the polymer:PCBM active layer coated on the electrodes as the lamination adhesive. Our lamination method efficiently eliminates any shunting. Extended exposure to ambient degrades the laminated devices, which manifests in a significantly reduced photocurrent extraction when the device is illuminated through the anode, despite the fact that the PEDOT(PSS) electrodes are optically equivalent. We show that degradation-induced electron traps lead to increased trap-assisted recombination at the anode side of the device. By limiting the exposure time to ambient during production, degradation is significantly reduced. We show that lamination using the active layer as the adhesive can result in device performance equal to that of conventional sequential coating.

可扩展的生产方法和具有低嵌入能量的低成本材料是有机太阳能电池成功的关键。PEDOT（PSS）电极符合这些标准，可用于低成本和所有溶液处理的太阳能电池。但是，这样的设备易于分流。在这项工作中，我们介绍了一种卷对卷层压方法，以构建具有PEDOT（PSS）阳极和聚乙烯亚胺（PEI）改性PEDOT（PSS）阴极的半透明太阳能电池。我们将涂在电极上的聚合物：PCBM活性层用作层压胶粘剂。我们的层压方法可有效消除任何分流。尽管PEDOT（PSS）电极在光学上是等效的，但长时间暴露在环境中会使叠层器件性能下降，当通过阳极照射器件时，这会显着降低光电流提取。我们表明，降解诱导的电子陷阱导致在设备阳极侧的陷阱辅助重组增加。通过将生产期间的暴露时间限制在环境中，可以大大降低降解。我们表明，使用活性层作为粘合剂进行层压可以产生与常规顺序涂覆相同的器件性能。