Patent ID: 8057850
Filing Date: 2011-11-15
Classification: C23C,C30B

Abstract:
1. A method of forming a thin film layer of copper-indium-selenide, comprising: dispersing a liquid-based In—Se precursor comprising In and Se in a liquid matrix on a substrate; heating the liquid-based precursor comprising the In and Se in the liquid matrix to vaporize and drive away the liquid matrix, to decompose the precursor comprising the In and Se, to vaporize ligands from the decomposed In—Se precursor, to vaporize volatile products from the In—Se precursor including Se and/or H cooling the annealed crystalline In—Se film on the substrate; dispersing a liquid-based Cu—Se precursor comprising Cu and Se in a liquid matrix on the crystalline In—Se film; and heating the liquid-based Cu—Se precursor comprising the Cu and Se in the liquid matrix to vaporize and drive away the liquid matrix, to decompose the Cu—Se precursor comprising the Cu and Se, to vaporize ligands from the decomposed Cu—Se precursor, to vaporize volatile products from the Cu—Se precursor including Se and/or H