PROCEDE DE FABRICATION D'UNE STRUCTURE A MULTIJONCTIONS POUR CELLULE PHOTOVOLTAIQUE

Process for manufacturing a multi-junction structure for a photovoltaic cell. The process includes steps in: a) providing a first donor substrate including a first carrier substrate and a first seed layer including a first material; b) providing a second donor substrate including a second carrier substrate and a second layer including a second material different from the first material; c) bringing the first seed layer and the second layer into contact so as to obtain a direct bond between the first seed layer and the second layer with a view to forming the bonding interface; d) removing the first carrier substrate so as to expose the first seed layer; and e) epitaxially growing at least one first junction on the first seed layer.