Patent ID: 9478695
Filing Date: 2016-10-25
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. Method for fabricating a I-III-VI 2 layer having photovoltaic properties, comprising: deposition of molybdenum on a substrate to form a contact layer comprising a first sublayer and a second sublayer, said deposition comprising a first step during which the molybdenum is deposited to form said first sublayer and a second step during which the molybdenum and an additional element which is absent from the first sublayer are deposited to form said second sublayer and to form a compound, in the contact layer, acting as a barrier to the diffusion of an element VI, deposition of a precursor of the I-III-VI heat treatment of the precursor with an addition of the element VI to form the I-III-VI wherein, said heat treatment comprises forming a superficial layer between the second sublayer of the contact layer and the I-III-VI