Patent ID: 7964434
Filing Date: 2011-06-21
Classification: C03C,H01L,Y02E,Y02P

Abstract:
1. A method of processing a plurality of photovoltaic materials in a batch process, the method comprising: providing at least one transparent substrate having an overlying first electrode layer and an overlying copper species based absorber precursor layer within an internal region of a furnace, the overlying copper species based absorber precursor layer having an exposed face; disposing at least one soda lime glass comprising a soda lime glass face within the internal region of the furnace such that the soda lime glass face is adjacent to the exposed face of the at least one transparent substrate, and the soda lime glass face and the exposed face of the one transparent substrate are configured by a spacing between the soda lime glass face and the exposed face of the one transparent substrate; and subjecting the at least one transparent substrate and the one soda lime glass to thermal energy to transfer one or more sodium bearing species from the soda lime glass face across the spacing into the copper species based absorber precursor layer via the exposed face.