ELECTROCHROMIC DEVICES WITH A POLYMERIC-TAMOL BASE AND METHOD FOR OBTAINING THE SAME
The present invention refers to the development and obtention of novel electrochromic devices of variable transmission resulting from electronic conductive polymers and ions (polyelectrolytes) confined in a multilayer structure. These devices are able to modulate the light that passes therethrough b...
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Sprache: | eng ; spa |
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Zusammenfassung: | The present invention refers to the development and obtention of novel electrochromic devices of variable transmission resulting from electronic conductive polymers and ions (polyelectrolytes) confined in a multilayer structure. These devices are able to modulate the light that passes therethrough by means of an oxide-reduction process and electron transference, which allow the transmittance level to be controlled as well as the change of colour in the material depending on the applied potential. The purpose of the invention is to create multilayer structures of 5 to 7 layers, which comprise a polymer layer of a transparent substrate, such as polymethacrylate, polystyrene, polycarbonate, Polyethylene terephthalate and polyolefins, a layer of an electric conductive polymer (polypirrol, polyethylene dioxythiophene (PEDOT), polyaniline (PAN), polypirrol (PPY)) chemically modified with TAMOL for strengthening the electrochromic effect, an electrolyte and/or polyelectrolyte of electrochrom ic polymeric origin (PEDOT, PANI, POLYPIRROL) and another layer of transparent substrate, so that the device of 5 layers of conductive polymer acting as an electrochromic material and as a ion collector. In addition, the invention comprises the obtention process of each element of the device, as well as the final product obtained from said device.
La presente invención se refiere al desarrollo y obtención de nuevos dispositivos electrocrómicos de transmisión variable partiendo de polímeros conductores electrónicos e iónicos (polielectrolitos) confinados en una estructura multicapa. Estos dispositivos son capaces de modular la luz que pasa a través suyo, mediante un proceso de óxido- reducción y transferencia de electrones permitiendo controlar el nivel de transmitancia y el cambio de color del material en función de un potencial aplicado. El objeto de la invención son estructuras multicapa de 5 y 7 capas, que comprende una capa de polímero de substrato, transparente, tales como; polimetacrilato, poliestiresno, policarbonato, polientereftalato y poliolefinas, una capa de polímero conductor eléctrico (polipirroll, polietilendioxitiofeno (PEDOT), polianilina (PAN), polipirrol (PPY) ) modificado químicamente con TAMOL para potencializar el efecto electrocrómico, un electrolito y /o polielectrolito de origen polimérico electrocrómico (PEDOT, PANI, POLIPIRROL) y otra capa de substrato transparente, de forma que en el dispositivo de 5 capas el polímero conductor actúa como material |
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