title: Carbon nanotube composite films with switchable transparency.
abstract: A composite film with switchable transparency is fabricated by sandwiching a carbon nanotube (CNT) sheet within polyurethane (PU) films. The introduction of CNTs not only makes the composite film electrically conductive but also induces a rapid crystal melting of soft segments in the PU. As a result, the film can be switched from opaque to transparent in just several seconds after turning on voltage, and reversed back to opaque after turning off voltage. The film also possesses several other attractive properties, including excellent flexibility, low energy consumption, switching speed insensitivity to ambient temperature, and easy coloration, which make the film promising for a wide variety of practical applications.
authors.affiliation: Suzhou Institute of Nano-Tech and Nano-Bionics , Ruoshui Road 398, Suzhou 215123, China.
authors.forename: Fancheng
authors.initials: F
authors.lastname: Meng
authors.forename: Xiaohua
authors.initials: X
authors.lastname: Zhang
authors.forename: Geng
authors.initials: G
authors.lastname: Xu
authors.forename: Zhenzhong
authors.initials: Z
authors.lastname: Yong
authors.forename: Hongyuan
authors.initials: H
authors.lastname: Chen
authors.forename: Minghai
authors.initials: M
authors.lastname: Chen
authors.forename: Qingwen
authors.initials: Q
authors.lastname: Li
authors.forename: Yuntian
authors.initials: Y
authors.lastname: Zhu
mesh_terms: D004553:Electric Conductivity; D004563:Electrochemistry / Q000295:instrumentation*; D004574:Electromagnetic Fields; D008027:Light; D008567:Membranes, Artificial; D037742:Nanotubes, Carbon / Q000737:chemistry* / Q000528:radiation effects*; D012031:Refractometry / Q000379:methods*; D012542:Scattering, Radiation
chemical_list: D008567:Membranes, Artificial; D037742:Nanotubes, Carbon