Soft electronics plays an important role in the realization of health monitoring and rehabilitation, Internet of Things (IoTs), and soft robotics. In the past two decades, the research focuses have been devoted to developing soft electronics based on thin film materials and architectures that are non-permeable to air, moisture, and liquid. It is recently found that permeability is essential to the chronic biocompatibility of these soft devices, especially those closely attached on soft skins and tissues. This talk will discuss our research effort on developing soft and permeable electronics for wearable, skin-attached, and implantable applications. We will discuss the development of fibrous conductive materials, and their applications as building blocks for fabricating highly flexible, foldable, stretchable, and permeable electronic devices and systems.

提出了通过液滴操控实现超高精度图案化的新策略，解决了影响印刷精度的咖啡环效应、瑞利失稳和马兰戈尼效应等难题，突破了印刷制造的精度极限；揭示了液滴精准成型和动态行为控制的规律，发展了纳米绿色印刷制造微纳结构器件的普适方法，制备了一系列高精度、高性能的光电器件，并主持起草了印刷电子国际标准。

共轭有机/高分子材料的基本特征是分子/链间范德华弱作用，结构的柔软带来强烈的电子-振转耦合，前者带来电子关联效应（U/t>>1），后者带来电荷局域化效应，都使得常规的能带理论不适用。我们面向这类本征柔性的电子材料发展了热振动关联函数理论（TVCF）和密度矩阵重正化群（DMRG）理论去描述有机发光、电荷输运以及热电转换等基本过程，在此基础上编制了MOMAP和Renormalizer两套计算软件。MOMAP已经得到商业化，国内外135家用户，包括海外20余家。用于计算预测发光效率和载流子迁移率等有机电子材料的基本物理参数。

纵观国际分子材料的发展，分子功能的智能化成为总趋势。分子智能化的关键是分子结构和性能之间的关系，也是解决“卡脖子”智能材料的关键。面向产业瓶颈，光学材料更应该注重智能化分子设计，实现性能上的变革性突破。在柔性光学显示材料领域，急需开展柔性显示化学材料的原始创新，包括OLED发光材料、偏光材料等；在平板显示材料领域，急需攻克彩色光刻胶、彩色滤材料、折光材料；半导体领域，急需攻克高分辨的光刻胶，特别是深紫外激发的光刻胶；在生物医学领域，急需各类分子探针、精准成像、靶向药物等智能化分子体系及其器件系统。