Abstract: In one embodiment, an electrochromic device includes a single active layer configured to be alternately placed in a light-transmitting state in which relatively large amounts of light can be transmitted through the active layer and a light-blocking state in which relatively small amounts of light can be transmitted through the active layer, where the device comprises no other layers of material that contribute to transitioning between the two states

Abstract: Described herein are geomembranes with improved chemical, physical, and mechanical properties. In one aspect, the geomembrane includes polyethylene, a phenolic antioxidant, a phosphite antioxidant, a hindered amine light stabilizer, and carbon black. Also described herein are methods for making the geomembranes described herein.

Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.

Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.

Abstract: In one embodiment, a chromatic device includes a transparent conductive substrate, an active layer provided on the conductive substrate, the active layer comprising a conducting polymer, an electrolyte layer in contact with the conductive substrate and the active layer, the electrolyte comprising an oxidant and a salt but not comprising an acid, and a metal element configured to be selectively placed in and out of direct electrical contact with the conductive substrate or the active layer, wherein the active layer has a color that blocks light when the metal element is not in electrical contact with the conductive substrate but changes to a translucent color that transmits light when the metal element is placed in electrical contact with the conductive substrate or the active layer, wherein the active layer changes color without applying external energy to the active layer.

Abstract: Described herein are geomembranes with improved chemical, physical, and mechanical properties. In one aspect, the geomembrane includes polyethylene, a phenolic antioxidant, a phosphite antioxidant, a hindered amine light stabilizer, and carbon black. Also described herein are methods for making the geomembranes described herein.

Abstract: 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.