In one embodiment, a chromatic device includes an active layer and an electrolyte layer in contact with the active layer, the electrolyte comprising an oxidant and a salt, wherein the active layer has a color that blocks light when metal is not in electrical contact with the active layer but changes to a translucent color that transmits light when metal is placed in electrical contact with the active layer, wherein the active layer changes color without applying electrical energy to the active layer.
Ram, Manoj K.; Indrakar, Sharan Kumar; Goswami, D. Yogi; and Stefanakos, Lee K., "Chromatic devices comprising a salt-based electrolyte" (2019). USF Patents. 1025.
University of South Florida