title: Electrical switch for smart pH self-adjusting system based on silver nanowire/polyaniline nanocomposite film.
abstract: A sensitive pH-triggered electrical switch is demonstrated by using a layer-structured silver nanowire/polyaniline nanocomposite film fabricated via an easy vertical spinning method. The as-prepared nanocomposite film shows the high electrical conductivity of 1.03 × 10(4) S cm(-1) at the Ag-NW areal density of 0.84 mg cm(-2) and a good cycling stability. Particularly, because of the layered structure, the switch achieves a very high contrast ratio of ca. 9 × 10(8), which is 2-6 orders higher than that reported previously. The high electrical conductivity and the high switching ratio make the layer-structured nanocomposite film a sensitive switch candidate for pH-responsive systems. Finally, a smart pH self-adjusting switching system is successfully designed using the as-prepared layer-structured nanocomposite film.
authors.affiliation: †Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, No. 2 Beiyitiao, Zhongguancun, Beijing 100190, PR China.|‡University of Chinese Academy of Sciences, Beijing 100039, PR China.
authors.forename: Gui-Wen
authors.initials: GW
authors.lastname: Huang
authors.affiliation: †Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, No. 2 Beiyitiao, Zhongguancun, Beijing 100190, PR China.
authors.forename: Hong-Mei
authors.initials: HM
authors.lastname: Xiao
authors.affiliation: †Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, No. 2 Beiyitiao, Zhongguancun, Beijing 100190, PR China.
authors.forename: Shao-Yun
authors.initials: SY
authors.lastname: Fu
keywords: composite film; pH; polyaniline; silver nanowire; smart material