▎ 摘　　要

Ag nano-film was prepared on the glass substrate (GS) by vertical target pulsed laser deposition (VTPLD). Polyaniline (PANI) and polyaniline-graphene oxide (PANI-GO),composite suspension were obtained through chemical oxidative polymerization and in situ polymerization. GS/Ag nano-film/PANI and GS/Ag nano-film/PANI-GO composites were obtained by czochralski method. The structure, molecular weight, morphology and conductivity of samples were studied by IR, XRD, MALDI-TOF-MS, SEM, TEM and digital multimeter. Electrochemical and electrochromical properties of PANI and PANI-GO composites on GS/Ag nano-film were studied by CV and UV-vis DRS. Results show compact and uniform Ag nano-film with the particle size between 30 nm and 50 nm was prepared by VTPLD successfully and resistance values are between 1 0 and 5 0, lower than that of ITO glass (20 Omega). PANI-GO composites on GS/Ag nano-film prepared under the optimal laser power of 17 W has lower color switching potential and wider shift range of characteristic peaks than PANI, especially GS/Ag nano-film/PANI-GO20 composites which has the color switching potential of 0.175 V and 0.557 V, and the characteristic peak shifts from 430 nm to 402 nm with the increasing potential from 0.2 V to 0.8 V. The obtained GS/Ag nano-film is a candidate for application as the electrode in the reflective electrochromic device. We can use less energy to make GS/Ag nano-film/PANI-GO20 composites switch color. (C) 2015 Elsevier Ltd. All rights reserved.