Centre National De La Recherche Scientifique

Ecole Polytechnique

Electricite De France

Total Sa

Totalenergies Se

Institut Photovoltaique D'ile De France (ipvf)

Wanghua Chen

Pere Roca I Cabarrocas

Père Roca I Cabaroccas

Gilles Poulain

Martin Foldyna

Romain Cariou

The invention relates to a process for the preparation of a semiconductor material comprising at least one entirely monocrystalline semiconductor layer, said process comprising the steps of preparation of the surface of a first substrate to receive a monocrystalline silicon layer; deposition by Plasma-Enhanced Chemical Vapor Deposition (PECVD) of a layer of monocrystalline silicon by epitaxial growth with a growth rate gradient on the silicon layer monocrystalline obtained in step (i); and epitaxial growth of a monocrystalline layer of a semiconductor material on the monocrystalline silicon layer obtained in step (ii), to thus obtain a material comprising at least one entirely monocrystalline semiconductor layer. The invention also relates to a multilayer material comprising a monocrystalline layer of semiconductor material.

Process for manufacturing transferable thin layer

Disclosed is an opto-electronic device including a semiconducting substrate, a layered interface including at least one layer, the layered interface having a first surface in contact with a surface of the semiconducting substrate and the layered interface being adapted for passivating the surface of the semiconducting substrate, the layered interface having a second surface and the layered interface being adapted for electrically insulating the first surface from the second surface, and a textured surface structure including a plurality of nanowires and a transparent dielectric coating, the textured surface structure being in contact with the second surface of the layered interface, the plurality of nanowires protruding from the second surface and the plurality of nanowires being embedded between the second surface and the transparent dielectric coating.

Opto-electronic device with textured surface and method of manufacturing thereof

Growing community of inventors

Bures-sur-Yvette, France

Wanghua Chen