BACK CONTACTING AND INTERCONNECTION OF TWO SOLAR CELLS

摘要

Method for producing back contacts on silicon solar cells (100) and an interconnection between silicon solar cells (100) where the front surface has been fully treated and the back surface has been processed to the point where the said solar cells (100) can be contacted on the back surface. The method further comprises: a) attaching the solar cells (100) onto a transparent superstrate (104), thereby forming a structure (120) b) depositing a passivating layer (113) onto the back surface of the structure (120) c) depositing a silicon material layer (108) onto the back surface of the structure (120) d) separating the silicon material layer (108) by first areas (C) e) providing contact sites in areas (B) f) depositing a metal layer (109) onto the back surface of the structure (120) g) heating the structure (120) to form silicide (110) h) optionally opening the metal layer (109) in areas (C) i) depositing metal (112) onto the silicide (110) Device comprising solar cells (100) with back contacts and interconnections produced by the method.