Patent ID: 8507040

Claim:
A process of making a metal chalcogenide alloy film on a substrate comprising steps of: (a) contacting the substrate with a silyl-chalcogen selected from the group consisting of silyltellurium and silylselenium; (b) contacting the substrate with a germanium compound having a general formula comprising at least one selected from the group consisting of (i) Ge(OR) 2 , wherein R is selected from the group consisting of an alkyl group with 1 to 10 carbons in chain, branched, or cyclic form; a functionalized alkyl group with the general structure of: R 5 NR 6 R 7 ; R 5 OR 6 ; and R 5 SR 6 ; wherein R 5 is an alkylene group with 2 to 6 carbons in chain, branched, or cyclic form; R 6-7 are independently selected from the group consisting of hydrogen, alkyl groups with 1 to 6 carbons in chain, branched, or cyclic form; and (ii) Ge(NR 2 ) 2 , wherein R is a functionalized alkyl group with the general structure of: R 5 NR 6 R 7 ; R 5 OR 6 ; and R 5 SR 6 ; wherein R 5 is an alkylene group with 2 to 6 carbons in chain, branched, or cyclic form; R 6-7 are independently selected from the group consisting of hydrogen, alkyl groups with 1 to 6 carbons in chain, branched, or cyclic form; and (c) contacting the substrate with a metal compound having a general formula of: MX n ; wherein: M is selected from the group consisting of Sb, In, Sn, Ga, Bi, Ag, Cu, Zr, Hf, Hg, Cd, Zn and noble metals; X is a neucleophilic group selected from the group consisting of OR (alkoxy), F (fluorine), Cl (chlorine), Br (bromine), NR 2 (amino), CN (cyano), OCN (cyanate), SCN (thiocyanate), diketonate, carboxylic groups and mixtures thereof, wherein R is selected from the group consisting of an alkyl group with 1 to 10 carbons in chain, branched, or cyclic form; and a functionalized alkyl group with the general structure of: R 5 NR 6 R 7 ; R 5 OR 6 ; and R 5 SR 6 ; wherein R 5 is an alkylene group with 2 to 6 carbons in chain, branched, or cyclic; R 6-7 are independently selected from the group consisting of hydrogen, alkyl groups with 1 to 6 carbons in chain, branched, or cyclic form; and n=1 to 5.