Liu Jingyu, Ma Qianli, Tian Jiao, Xi Xue, Li Dan, Dong Xiangting, Yu Wensheng, Wang Xinlu, Wang Jinxian, Liu Guixia
Key Laboratory of Applied Chemistry and Nanotechnology at Universities of Jilin Province, Changchun University of Science and Technology Changchun 130022 China
RSC Adv. 2018 Jun 21;8(41):22887-22896. doi: 10.1039/c8ra03566k.
Brand-new double anisotropic conductive flexible composite films (ACFs) were firstly put forward, devised and fabricated. The flexible array composite films were constructed electrospinning using highly aligned Janus nanoribbons as conductive and constitutive units. The Janus nanoribbon consists of two parts, which are respectively conducting side and insulating-luminescent side. The Janus nanoribbons array composite film has two layers, and the two layers are combined tightly to form a top-to-bottom structure. In the composite film, the length direction of the Janus nanoribbons (namely conducting direction) in the two layers is perpendicular, so that a composite film with double electrically conductive anisotropy is achieved. In addition, by adjusting the content of PANI, conductive anisotropy of each layer of the composite film can be tuned, and the conductance in the conducting direction is about 10 times stronger than that in the insulating direction. The Janus nanoribbon array composite films also have tunable and improved luminescent properties, achieving bi-functionality of double anisotropically electrical conduction and luminescence. The proposed design concept and preparation technology will provide theoretical and technical support for the design and fabrication of novel multifunctional ACFs.
首次提出、设计并制备了全新的双各向异性导电柔性复合薄膜（ACF）。以高度取向的双面纳米带作为导电和结构单元，通过静电纺丝构建了柔性阵列复合薄膜。双面纳米带由导电侧和绝缘发光侧两部分组成。双面纳米带阵列复合薄膜有两层，两层紧密结合形成上下结构。在复合薄膜中，两层中双面纳米带的长度方向（即导电方向）相互垂直，从而实现了具有双导电各向异性的复合薄膜。此外，通过调节聚苯胺的含量，可以调整复合薄膜各层的导电各向异性，导电方向的电导率比绝缘方向约强10倍。双面纳米带阵列复合薄膜还具有可调节和改善的发光性能，实现了双各向异性导电和发光的双功能特性。所提出的设计概念和制备技术将为新型多功能ACF的设计和制备提供理论和技术支持。
