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 ARTICLE
Category Archives: Information display
A flexible near-infrared light-writing multicolor hydrogel system for on-demand information display
Nanowerk May 22, 2023 It is challenging to construct intelligent rewritable display systems with integrated functionality of remote control, rapid activation, multicolor and multimode display. Researchers in China developed a kind of rewritable hydrogel multicolor systems that can combine the merits of near-infrared (NIR) light-writing and projecting modes for on-demand information display. The systems have multilayer layout consisting of poly(dimethylsiloxane) (PDMS)-sealed carbon nanotubes (CNTs) film as photothermal control unit and embedded fluorescent hydrogels as multicolor display unit, in which thermoresponsive hydrogel is constrained within non-responsive hydrogel. The design resulted in rapid and reversible hand-written display of arbitrary information. They demonstrated […]