STABLE MULTILAYER ELECTROCHROMIC MODULE (EMBODIMENTS) Russian patent published in 2019 - IPC G02F1/15 

FIELD: chemistry.

SUBSTANCE: invention relates to devices providing change of light transmission value under effect of electric current, namely to stable electrochromic modules consisting of several separate layers of different materials. Essence of the invention consists in the fact that the versions of the product with the electrochromism-producing effect are provided when the voltage from the external source is applied with a coating, which includes a multilayer coating on the optically transparent substrate, which comprises a set of directly contacting thin film layers of different materials of the thickness range from several tens of nanometers to several hundreds of micrometers, arranged in a certain order from the surface of the optically transparent substrate. At that, materials of individual layers, their thickness and order are designed so that end product for each of proposed versions has set of required spectrophotometric properties from the point of view of range of location and width of maximum absorption band, along with stability of electrochromic characteristic parameters with respect to cyclic switching of its optical state between contrast positions.

EFFECT: technical result of the invention is directed to the implementation of a stable multilayer electrochromic module with a wide absorption maximum band, providing a neutral shade of the product in coloured state and displaced, while in the wavelength range of the visible part of the spectrum, in order to minimize the risk of thermal shock of translucent structures based on the electrochromic module exposure to intense fluxes of infrared solar radiation.

12 cl, 7 dwg, 2 tbl