Patent ID: 7345413
Filing Date: 2008-03-18
Classification: C09K,H01L

Abstract:
1. A light-emitting device, having at least one radiation source which emits essentially within the range of from 150 to 600 nm, and a luminescent material which converts the light from the radiation source at least partially into longer-wave radiation, the luminescent material being formed by particles which are coated by a coating layer, wherein a coating material for the coating layer is selected from at least one of the following groups: alkylsilyl halides of the stoichiometry R arylsilyl halides of the stoichiometry Ar phenyl-substituted silicon alkoxides; alkyl halides of the type R—X, wherein R=aliphatic residue and X=halogen; and acyl halides of the type wherein R=aliphatic residue and X=halogen.