title: Thread-like supercapacitors based on one-step spun nanocomposite yarns.
abstract: Thread-like electronic devices have attracted great interest because of their potential applications in wearable electronics. To produce high-performance, thread-like supercapacitors, a mixture of stable dispersions of single-walled carbon nanotubes and conducting polyaniline nanowires are prepared. Then, the mixture is spun into flexible yarns with a polyvinyl alcohol outer sheath by a one-step spinning process. The composite yarns show excellent mechanical properties and high electrical conductivities after sufficient washing to remove surfactants. After applying a further coating layer of gel electrolyte, two flexible yarns are twisted together to form a thread-like supercapacitor. The supercapacitor based on these two yarns (SWCNTs and PAniNWs) possesses a much higher specific capacitance than that based only on pure SWCNTs yarns, making it an ideal energy-storage device for wearable electronics.
authors.affiliation: College of Chemical Engineering, Qingdao University, Qingdao, 266071, P. R. China; National Center for Nanoscience and Technology, Beijing, 100190, P. R. China.
authors.forename: Qinghai
authors.initials: Q
authors.lastname: Meng
authors.forename: Kai
authors.initials: K
authors.lastname: Wang
authors.forename: Wei
authors.initials: W
authors.lastname: Guo
authors.forename: Jin
authors.initials: J
authors.lastname: Fang
authors.forename: Zhixiang
authors.initials: Z
authors.lastname: Wei
authors.forename: Xilin
authors.initials: X
authors.lastname: She
keywords: carbon nanotubes; conducting polymers; flexible devices; nanocomposites; single-walled nanotubes; supercapacitors