Patent ID: 9461186
Filing Date: 2016-10-04
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. A method for manufacturing a photovoltaic module, the method comprising: forming a semiconductor window layer over a substrate; forming a semiconductor absorber layer over the window layer, the semiconductor absorber layer comprising one of CdTe and CIGS; removing oxides from the absorber layer surface; forming a first metal layer in direct physical contact with the oxide removed surface of the absorber layer, the first metal layer comprising a material selected from the group consisting of molybdenum, tungsten, nickel, cobalt, titanium, molybdenum nitride, titanium nitride, tungsten nitride, mercury tellurium, or any combination thereof; heat treating the formed first metal layer; forming a capping passivating layer over the formed first metal layer prior to heat treating the formed metal layer; and forming a second metal layer over the heat treated first metal layer, wherein the capping passivating layer is removed from the first metal layer after heat treating the formed metal layer and before the forming of the second metal layer.