Electrochemical and electrochromic behaviors of polyaniline-graphene oxide composites on the glass substrate/Ag nano-film electrodes prepared by vertical target pulsed laser deposition Review Article Dyes and Pigments, Available online 12 February 2015, Pages Yuxing Ji, Chuanli Qin, Haijun Niu, Liguo Sun, Zheng Jin, Xuduo Bai
Graphical abstractAg nano-film was prepared on the glass substrate (GS) by the method of vertical target pulsed laser deposition (VTPLD) and for the first time used as the conducting electrode in the reflective electrochromic devices (ECDs). Polyaniline and polyaniline-graphene oxide (PANI-GO) composites were respectively synthesized by chemical oxidative polymerization and in situ polymerization. GS/Ag nano-film/PANI and GS/Ag nano-film/PANI-GO composites were obtained by the czochralski method. The results show that compact and uniform Ag nano-film with the particle size between 30 nm to 50 nm has been prepared on the GS by VTPLD successfully and its resistance values are lower than the ITO glass. PANI-GO composites have superior electrochemical and electrochromical performances compared to the pure PANI, especially the PANI-GO20 (the mass ratio of PANI/GO was 80:20) which shows lower color switching potential of 0.175V and 0.557V, and the characteristic peak shifts from 430nm to 402nm with the increasing potential from 0.2V to 0.8V. The obtained GS/Ag nano-film is a candidate for application as the electrode in the reflective electrochromic device. Less energy can be used to make GS/Ag nano-film/PANI-GO20 composites switch color.
 | |
No comments:
Post a Comment