Patent ID: 9040113
Filing Date: 2015-05-26
Classification: C23C,H01L,Y02E

Abstract:
1. A method for preparing a portion of an interdigitated photovoltaic device, comprising: providing an atomic layer deposition (ALD) reactor; providing a high-aspect ratio substrate; providing a first non-halogenated precursor comprising Bis(N,N′-di-sec-butylacetamidinato)dicopper(I); providing a second non-halogenated precursor comprising a sulfur compound; reacting the first non-halogenated precursor in the ALD reactor for a first period; reacting the second non-halogenated precursor in the ALD reactor for a second period; repeating the reactions of the first non-halogenated precursor and the second non-halogenated precursor for a number of cycles until a chalcocite film of a desired thickness is formed on the high-aspect ratio substrate.