Patent ID: 6872471

Claim:
An infrared light emitting polymer device, said infrared light emitting polymer device comprising: (a) a hole transporting polymer; (b) a layer, said layer adjacent to said hole transporting polymer, said layer comprising at least one electron transporting molecule, said electron transporting molecule having energy levels capable of peak emissions in the infrared spectrum, wherein said electron transporting molecule comprises at least one rare earth metal containing chelating organic compound selected from the group consisting of tris(acetylacetonato) (1,10-phenanthroline) erbium, tris(acetylacetonato) (1,10-phenanthroline) neodymium, and tris(acetylacetonato) (1,10-phenanthroline) holmium; and (c) a source of optical energy positioned so as to irradiate said hole transporting polymer such that said source of optical energy stimulates infrared emissions from said electron transporting molecule.