Patent ID: 8501595

Claim:
A thin film, comprising: nanocrystal particles, in a matrix, wherein the thin film is prepared from a mixture of the nanocrystal particles and a molecular precursor by a wet process, followed by an annealing process, the matrix derives from the molecular precursor and has a composition identical to that of the nanocrystal particles and a crystal structure identical to that of the nanocrystal particles, and the nanocrystal particles act as nuclei for crystal growth of the thin film, wherein the molecular precursor is a compound represented by Formula 2 below: wherein L is a ligand having a nitrogen atom with an unshared pair of electrons; M is at least one metal atom selected from the group consisting of Group 12 elements, Group 13 elements and Group 14 elements; X is at least one Group 16 chalcogenide element; R is a hydrogen atom, a substituted or unsubstituted C 1 -C 30 alkyl group, a substituted or unsubstituted C 2 -C 30 alkenyl group, a substituted or unsubstituted C 2 -C 30 alkynyl group, a substituted or unsubstituted C 1 -C 30 alkoxy group, a substituted or unsubstituted C 5 -C 30 aryl group, a substituted or unsubstituted C 6 -C 30 aryloxy group, a substituted or unsubstituted C 2 -C 30 heteroaryl group, a substituted or unsubstituted C 2 -C 30 heteroaryloxy group, or a substituted or unsubstituted C 2 -C 30 heteroarylalkyl group; a is an integer from 0 to 2; and b is 2 or 3.