Novel double anisotropic conductive flexible composite film endued with improved luminescence

• Published in: RSC advances Vol. 8; no. 41; pp. 22887 - 22896
• Main Authors: Liu, Jingyu, Ma, Qianli, Tian, Jiao, Xi, Xue, Li, Dan, Dong, Xiangting, Yu, Wensheng, Wang, Xinlu, Wang, Jinxian, Liu, Guixia
• Format: Journal Article
• Language: English
• Published: England Royal Society of Chemistry 21.06.2018; The Royal Society of Chemistry
• Subjects: Anisotropy; Arrays; Chemistry; Electrical conduction; Luminescence; Optical properties; Photographic film; Polymer films; Resistance; Technical services
• ISSN: 2046-2069; 2046-2069
• 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 via 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 8 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. Brand-new double anisotropic conductive flexible composite films endued with tuned electrically conductive anisotropy and improved luminescence were prepared by electrospinning.