Phys.org  October 19, 2023
Researchers in China have proposed a new trilayer film structure for self-powered flexible multicolor EC displays based on self-charging/discharging mechanism. It was assembled by sandwiching an ionic gel film between 2 cathodic nickel hexacyanoferrate (NiHCF) and Prussian blue (PB) nanoparticle films on indium tin oxide substrates, had self-powered color switching films with fast responsive time and high reversibility. Multicolor switching was achieved through a color overlay effect by superimposing the 2 EC films, including green, blue, yellow, and colorless. The patterns could be created by the spray-coating method… read more. Open Access TECHNICAL ARTICLEÂ
(A) Digital photographs of the self-powered flexible multicolor EC system… Credit: RESEARCH, Vol 6, Article ID: 0227, 14 Sep 2023