Patent ID: 7585547

Claim:
A method of forming a Group IBIIIA VIA material, the method comprising; providing a first and a second base; depositing on the first and second base a first and a second precursor layers, respectively, each of the precursor layers including a Group IB material and at least one of a Group IIIA material and a Group VIA material; orienting the first and second precursor layers to face each other to form a space therebetween; introducing at least one element into a process environment in the space between the first and the second precursor layers; and in the process environment, passing an electrical current through at least one of the first base and the first precursor layer and at least one of the second base and the second precursor layer to provide controlled localized heat to the first and second precursor layers and causing a reaction of the Group IB material with the at least one of the Group IIIA material and the Group VIA material of the first and second precursor layers to form the Group IBIIIAVIA material on the first and second base, respectively.