Abstract: The present invention relates to a multilayer conductive system of metal oxides comprising: i. a substrate; ii. a layer of a crystalline binary metal oxide deposited on the substrate (i); and iii. a layer of a crystalline conductive metal oxide having a crystalline structure of perovskite type superposed over the layer of binary metal oxide (ii); the binary metal oxide of the layer (ii) having a local lattice mismatch of less than 5% with respect to that of the metal oxide of the layer (iii); provided that when the metal oxide of perovskite type of the layer (iii) is a crystalline transparent conductive metal oxide, the substrate (i) is transparent and the thickness of the crystalline binary metal oxide layer (ii) is <20 nm, preferably <10 nm, most preferentially 5-7 nm.