Flexible and Transparent Electric Shielding with a Conducting Polymer

摘要

Flexible and transparent electric shielding was fabricated by bar-coating of a poly(3,4-ethylenedioxythiophene) doped with poly(4-styrenesulfonate) (PEDOT:PSS) water dispersion on poly(vinylidene difluoride) (PVDF) films and subsequent treatment with sulfuric acid. The thickness (d), sheet resistance (R-s), electrical conductivity (sigma), total light transmittance (TT), and haze of the sulfuric acid treated (SA) films were 60 similar to 208nm, 112 similar to 24 Omega/square, 1450 similar to 2300 S/cm, 73 similar to 95, and 2.9, respectively, where the figure-of-merit (FOM) as transparent electrodes was found to be 58. The electric shielding characteristics of the SA film (d = 94 nm, TT = 92) showed that the shielding effect (SE) attained as high as -40 dB, while the electrical and optical properties of the PEDOT:PSS were crucially important for the flexible and transparent electric shielding.