Fast heat treatment method for a complete all-solid-state electrochromic stack

US10739656B2 · kind B2 · utility

Assignee

• SAINT-GOBAIN GLASS FRANCE · FR

Inventors

• Samuel Dubrenat · Paris, FR
• Martine Giret · Gagny, FR
• Li-Ya Yeh · Geilenkirchen, DE
• Jean-Christophe Giron · Aachen, DE
• Driss Lamine · Paris, FR

Key dates

• Filing date: Dec 8, 2015
• Grant date: Aug 11, 2020
• Expiry date: Oct 7, 2036

Classification

• Technology area (CPC G): Physics
• CPC primary: G02F2001/1555
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

A process for manufacturing an electrochromic glazing unit includes forming, on one face of a glass sheet, a complete all-solid-state electrochromic stack including in succession a first layer of a transparent conductive oxide; a layer of a cathodically colored mineral electrochromic material to form an electrochromic electrode; a layer of an ionically conductive mineral solid electrolyte; a layer of a cation intercalation material to form a counter electrode; and a second layer of a transparent conductive oxide; then heat treatment of the complete electrochromic stack by irradiation with radiation having a wavelength comprised between 500 and 2000 nm, the radiation originating from a radiating device placed facing the electrochromic stack, a relative movement being created between the radiating device and the substrate so as to raise the electrochromic stack to a temperature at least equal to 300° C. for a brief duration, for example shorter than 100 milliseconds.