Glass type electrochemical/electrically controllable device with variable optical and/or energetic characteristic

A method for fabricating an electrochemical device, the method comprising:

• providing a first carrier substrate provided with an electrically conductive layer associated with a first stack of electrically active layers;
• providing a second carrier substrate provided with an electrically conductive layer associated with a second stack of electrically active layers, wherein the first and second stacks each function optically in series on at least a portion of their surface and are separated by an electrically insulating means which is a gas, or is a vacuum;
• and
• depositing at least one of the layers of the electrochemical device by cathodic sputtering, cathodic sputtering assisted with a magnetic field, thermal evaporation, evaporation assisted with an electron beam, laser ablation, CVD, CVD assisted with a plasma or microwaves, an atmospheric pressure technique, or sol-gel synthesis of a dip type, spray, coating, or roller coating.