Patent ID: 7732067

Claim:
A functional laminate structure, comprising: a substrate having a surface; a crystalline metal-nonmetal layer comprising a metal-nonmetal, the metal-nonmetal comprising metal constituents, wherein the metal-nonmetal is selected from the group consisting of: ABX 3 , A n+1 B n X 3n+1 , doped substituents thereof, anion-deficient versions thereof, and anion-excess versions thereof; and a crystalline metal-oxide layer comprising a metal-oxide, the metal-oxide comprising metal constituents, wherein the metal-oxide layer is topotactic with said metal-nonmetal layer; the metal-oxide is selected from the group consisting of ABO 3 , A n+1 B n O 3n+1 , doped substituents thereof, anion-deficient versions thereof, and anion-excess versions thereof; the metal constituents of the metal-oxide layer are those of the metal-nonmetal layer; and the crystalline metal-nonmetal layer is located between the surface and the metal-oxide layer.