NOVELTY - The method comprises: depositing a layer of a material consisting of metal, metal nitride, metal oxide, metal oxynitride, metal sulfide, metal selenide or metal carbide on a substrate; and laser treating the deposited layer by irradiating a portion of the layer with a laser radiation emitting at a wavelength of 200-2000 nm. The treating step is performed in an atmosphere consisting of inert gas and reactive gas. A partial pressure of the inert gas is 10-4-10-2 mbar. A partial pressure of the reactive gas is less than 10-4 mbar.    USE - The method is useful for obtaining a substrate that is useful in a glazing or photovoltaic cell, solar panel, display screen such as LCD screen, organic LED display screen or field emission display screen, and electrochromic glazing (all claimed).    ADVANTAGE - The method is capable of improving conductivity of the deposited layer thus decreasing the crystalline defects present in the deposited layer, and undergoing the thermal hardening of the substrate without causing mechanical damage and modifying optical and/or electric properties of the substrate.    DETAILED DESCRIPTION - The method comprises: depositing a layer of a material consisting of metal, metal nitride, metal oxide, metal oxynitride, metal sulfide, metal selenide or metal carbide on a substrate; and laser treating the deposited layer by irradiating a portion of the layer with a laser radiation emitting at a wavelength of 200-2000 nm. The treating step is performed in an atmosphere consisting of inert gas and reactive gas. A partial pressure of the inert gas is 10-4-10-2 mbar. A partial pressure of the reactive gas is less than 10-4 mbar. the temperature of the substrate is less than 50 degrees C during the treating step. The treating step is carried out after the deposition of the first layer and before the subsequent deposition of a second layer. The substrate is made of glass, vitroceramics or organic polymer. The depositing step is carried out by cathode sputtering assisted by a magnetic field. The laser radiation is output from of a laser beam forming a line that irradiates a width of the substrate. An INDEPENDENT CLAIM is included for a substrate.