The bilayer structure of poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) coating on silver nanowires (AgNWs) film is a promising structure for replacing indium tin oxide (ITO) as a flexible transparent conductive electrode. Pristine PEDOT:PSS film due to its hydrophilicity and high permeability cannot fully protect AgNWs from mechanical stress and oxidation. Here, we present a composite approach that improves mechanical properties and lifespan of the AgNWs/PEDOT:PSS electrode by adding polyvinyl alcohol (PVA) as a polymer-surfactant. It is shown that addition of PVA improves the conductivity as well as the stability of hybrid electrode under demanding mechanical stress conditions. The drop in conductivity of the hybrid electrode is only 17% after 2000 repeated bending cycles whereas the reference electrode has shown a dramatic drop of 180% in the conductivity. We speculate that generation of hydrogen bonds between PEDOT:PSS and PVA increases adhesivity and cohesivity of the conductive polymer film to the sublayer. So PEDOT:PSS-PVA film not only fixes the arrangement of AgNWs but also improves the welding on cross junction points. By addition of PVA, optoelectronic performance (Figure-of-merit (Φ_TC)) of the electrode is improved from Φ_TC = 2.646 × 10^-3 Ω^-1 for AgNWs/PEDOT:PSS to Φ_TC = 3.819 × 10^-3 Ω^-1 for AgNWs/PEDOT:PSS-PVA electrode and power conversion efficiency (PCE) of the polymer solar cell (PSC) is increased by over 17%.

银纳米线（AgNWs）膜上的聚（3,4-乙撑二氧噻吩）：聚（苯乙烯磺酸盐）（PEDOT：PSS）涂层的双层结构是一种有希望的结构，可代替氧化铟锡（ITO）作为柔性透明导电电极。原始的PEDOT：PSS膜由于其亲水性和高渗透性而不能完全保护AgNWs免受机械应力和氧化。在这里，我们提出了一种复合方法，通过添加聚乙烯醇（PVA）作为聚合物表面活性剂来改善AgNWs / PEDOT：PSS电极的机械性能和寿命。结果表明，在要求的机械应力条件下，添加PVA可以改善混合电极的导电性和稳定性。在2000次重复弯曲循环后，混合电极的电导率仅下降了17％，而参比电极的电导率却出现了180％的急剧下降。我们推测，在PEDOT：PSS和PVA之间产生氢键会增加导电聚合物薄膜与子层的粘合性和内聚性。因此，PEDOT：PSS-PVA膜不仅可以固定AgNW的排列，还可以改善交叉结点的焊接。通过添加PVA，可提高光电性能（品质因数（Φ_TC））的参考电极的从Φ改善_TC = 2.646×10 ^-3 Ω ^-1为AgNWs / PEDOT：PSS来Φ _TC = 3.819×10 ^-3 Ω ^-1为AgNWs / PEDOT：PSS-PVA电极和电力变换聚合物太阳能电池（PSC）的效率（PCE）提高了17％以上。