Abstract
AbstractNovel flexible anisotropic conductive film with light‐controllable property is designed and constructed. The film is composed of electrospun polymeric nanobelts array loaded with TiO2 nanoparticles. The products are characterized by scanning electron microscopy, X‐ray diffractometry, thermal gravimetric analysis, and ultraviolet–visible absorption spectroscopy. The conductivity of the materials along two perpendicular directions of the film surface is investigated under dark and light irradiation conditions. The results reveal that the film is insulative in all directions under dark condition. Under irradiation, the light resistance along the length direction of the nanobelts is three orders of magnitude lower than the dark resistance, and the light resistance along the length direction of the nanobelts is two orders of magnitude lower than that along the perpendicular direction on the film surface. The effects of loading quantity of TiO2 nanoparticles and ratio of polyethylene oxide (PEO) to polymethylmethacrylate (PMMA) on the properties of the products are studied, and the influencing mechanism is proposed. This kind of anisotropic conductive film with new characteristics has broad application prospects in controllable flexible circuits and other fields.
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