Highly smooth, stable and reflective Ag-paper electrode enabled by silver mirror reaction for organic optoelectronics
Highly smooth, stable and reflective Ag-paper electrode enabled by silver mirror reaction for organic optoelectronics
复制标题
通过银镜反应实现有机光电子学的高度光滑、稳定和反射的银纸电极
DOI：
10.1016/j.cej.2019.03.258
复制
发表时间：
2019-08-15
影响因子：
15.1
通讯作者：
Wang, Xiaohui
中科院分区：
文献类型：
--
作者：
Huang, Quanbo;Zhang, Kai;Wang, Xiaohui
纤维素纸由于其灵活性、多功能性和低成本，可用于未来的电子产品。然而，快速制造具有光滑表面和耐久性的纸电极仍然是一个挑战。本文报道了利用溶液处理的银镜反应在普通印刷纸上制备导电、光滑、稳定的银电极。用聚丙烯对粗糙的纤维素基材进行改性，以形成互连的双网络结构，从而产生超平坦的表面和比纸或塑料更好的机械性能。在此基础上，开发了可控旋涂银镜面反应工艺，制备了光滑的银涂层。所得到的银纸电极具有表面粗糙度，没有超过50 nm的大颗粒，对水分和溶剂具有很强的阻隔能力，同时保留了普通纤维素纸的特征。介绍了银电极在有机太阳能电池和有机发光二极管中的成功应用，显示了该材料在未来柔性电子领域的潜力。
Cellulose paper can be exploited for future electronics due to its flexibility, versatility, and low cost. However, the rapid fabrication of paper electrodes with a smooth surface and durability remains a challenge. In this paper, we report the fabrication of conducive, smooth and stable Ag electrodes on common printing paper through solution-processed silver mirror reaction. The rough cellulose substrate was modified with polypropylene to form an interconnected two-network structure yielding a super-flat surface and significantly better mechanical performance than paper or plastic. Based on the modified paper, a controllable spin-coating silver mirror reaction process was developed to form a smooth silver coating. The obtained Ag-paper electrode has a surface roughness without big particles over 50 nm and a strong barrier ability against moisture and solvents, while retaining the features of common cellulose paper. The successful solution-processed application of organic solar cells and organic light-emitting diodes based on silver electrode is demonstrated, showing the material's potential in future flexible electronics.