Patent ID: 6861674

Claim:
An electroluminescent device ( 1 ) comprising: a glass or plastic supporting substrate ( 2 ); at least two electrodes ( 3 ) positioned on said substrate ( 2 ); at least a three-dimensional percolated layer ( 4 ; 4 A) positioned on said substrate ( 2 ) between said electrodes ( 3 ), said three-dimensional percolated layer ( 4 ; 4 A) having a metallic mesoporous structure defining a multitude of cavities with micrometric or nanometric dimensions, said structure being in particular composed of metallic interconnections or metallic dielectrics interconnections connected so as to guarantee electric conduction; a multitude of luminescent inclusions ( 5 ), in particular in the form of nanoparticles or macromolecules, housed in respective cavities of said three-dimensional percolated layer ( 4 ; 4 A), where said luminescent inclusions ( 5 ) are operative to emit light when energized by electrons which, as a result of electron tunneling effect, pass through said three-dimensional percolated layer ( 4 ; 4 A).