Patent ID: 8008113
Filing Date: 2011-08-30
Classification: H01L,Y02E

Abstract:
1. A method of forming a thin film solar cell having a Group IBIIIAVIA absorber layer comprising the steps of: providing a sheet shaped substrate; depositing an ohmic contact layer over the shaped substrate, wherein the ohmic contact layer comprises tungsten-nitride; depositing a seed layer including copper over the tungsten-nitride ohmic contact layer; electrodepositing a precursor in at least one layer, the precursor including a Group IB material and at least one Group IIIA material, the precursor as-deposited having a Group IB to Group IIIA molar ratio of less than or equal to 1.0; reacting the precursor with at least one Group VIA material to form the Group IBIIIAVIA absorber layer; and depositing a transparent layer over the Group IBIIIAVIA absorber layer.