Patent ID: 7736919

Claim:
Method for producing a nanostructured pn junction light-emitting diode comprising a semi-conducting substrate doped by a first dopant, successively comprising at least: a deposition step, on the surface of a dielectric thin layer covering said substrate, of an amorphous thin film formed by a semi-conducting material doped by a second dopant of an opposite type from that of the first dopant, a thermal treatment step designed to form, in the dielectric thin layer and from the amorphous thin film, a plurality of dots made of semi-conducting material doped by the second dopant, of nanometric size and in epitaxial relationship with the substrate, to form a plurality of pn junctions of nanometric size, and a formation step of an additional thin layer, on the surface of the dielectric thin layer, by epitaxial growth from the dots located in the dielectric thin layer.