The invention relates to a method for obtaining a material including a substrate and at least one thin layer that contains an at least partially crystallised titanium oxide and is deposited on a first surface of said substrate, wherein said method comprises the following steps: depositing said at least one thin layer containing titanium oxide; subjecting said at least one thin layer containing titanium oxide to a crystallisation process by supplying a power capable of heating each point of said at least one thin layer containing titanium oxide to a temperature of at least 300°C while maintaining a temperature lower than or equal to 150°C at any point of the surface of said substrate opposite said first surface, wherein said crystallisation process is preceded by the step of depositing, on and/or under said thin layer containing titanium oxide, a power-providing layer capable of absorbing the energy supplied during said crystallisation process more efficiently than said at least one thin layer containing titanium oxide, and/or capable of generating an additional power during said crystallisation process and of transmitting at least a portion of said energy to said at least one thin layer containing titanium oxide during said crystallisation process.