Patent ID: 6258620
Filing Date: 2001-07-10
Classification: H01L,Y02E,Y02P

Abstract:
A method of manufacturing a thin film photovoltaic device comprising the steps of:(a) providing a substrate carrying a back contact;(b) forming a precursor on the back contact by depositing at least one Class IB element, at least one Class IIIA element, and at least one Class VIA element on the back contact, with an atomic ratio of deposited Class IB elements to deposited Class IIIA elements in the precursor of not greater than 1.0;(c) heating the precursor in the presence of a flux of at least one Class VIA element thereby creating a partially completed absorber layer;(d) depositing an additional amount of at least one Class IB element onto the partially completed absorber layer, thereby changing the atomic ratio of deposited Class IB elements to deposited Class IIIA elements; and(e) heating the partially completed absorber layer with its additional amount of Class IB element in the presence of a flux of at least one Class VIA element.