新型离子液体凝胶复合柔性透明导电薄膜的构筑

作为柔性光电子器件和柔性传感器的关键部件，高性能柔性透明导电薄膜的设计制备至关重要。传统的柔性透明导电薄膜不能满足柔性器件在光电性能、稳定性、自修复性以及自适应性等方面的多功能需求。本项目将从“二元协同作用”的角度出发，将离子液体凝胶与导电纳米材料（包括一维铜纳米线、二维石墨烯、三维PEDOT:PSS）有机复合，发挥离子液体凝胶柔性、耐极端条件好、可设计性强的优势，合理调控其与导电纳米材料在分子层次上的相互作用，设计制备新型多功能离子液体凝胶复合柔性透明导电薄膜。利用石英晶体微天平、X射线光电子能谱、拉曼光谱、掠入角广角X射线散射等手段揭示离子液体凝胶与导电纳米材料在分子层次上的相互作用机制，归纳总结分子层次的相互作用对复合薄膜宏观光电性能、稳定性、自修复性以及自适应性的影响规律，指导新型多功能柔性透明导电薄膜材料的设计，获得3-5种离子液体凝胶复合柔性透明导电薄膜，探究其器件化应用。

As the key component of flexible optoelectronic devices and flexible sensors, it is very important to design and prepare high-performance flexible transparent conductive films. The traditional flexible transparent conductive films cannot meet the multi-functional requirements of the flexible devices in the aspects of photoelectric performance, stability, self-healing and self-adaptivity. In this project, we will start from the binary cooperative complementarity to design novel multi-functional ionogel-based composite flexible transparent conductive films by rationally tuning interactions between ionogels and conductive nanomaterials at the molecular level. We will utilize quartz crystal microbalance (QCM), X-ray photoelectron spectroscopy (XPS), Raman spectra and grazing-incidence wide-angle X-ray scattering (GIWAXS) to study the mechanism between ionogels and conductive nanomaterials at the molecular level. The relationship between the molecular interactions and macroscopic properties of the composite films including photoelectric performance, stability, self-healing and self-adaptivity will be explored and analylized in detail. Under the optimal conditions, we will obtain three to five ionogel-based composite flexile transparent conductive films, which will be further applied to assemble optoelectronic devices.