Patent ID: 7919018
Filing Date: 2011-04-05
Classification: C09D

Abstract:
1. A photoactive material comprising: a first material comprising a wide-gap semiconductor nanoparticle, wherein the first material exhibits absorption of non-visible light and no appreciable absorption of visible light; a second material comprising a lanthanide ion, wherein the second material exhibits emission of light; a linker compound bonded to the first material; a chelator compound covalently bonded to the linker and bonded to the second material; and a functional group bonded to the chelator compound providing chemical functionality to the photoactive material; wherein the linker compound and chelator compound each exhibits no absorption of UV, NIR or visible light and participates in a transfer of energy from the first material to the second material, wherein the energy is derived from the non-visible light absorbed by the first material; wherein the functional group exhibits no absorption of UV, NIR, or visible light, and does not inhibit the emission of light exhibited by the second material.