Patent ID: 11912918
Assignee: LUMILEDS, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  F  H | IPC C  F  H

Claim 0:
1. A method for providing a luminescent particle with a hybrid coating, the method comprising:
providing a particulate luminescent material having a surface;
forming a primer layer directly on at least a portion of the surface;
performing a first atomic layer deposition process on the particulate luminescent material having the primer layer to deposit a first ALD layer, the first atomic layer deposition process using a metal oxide first precursor selected from a group of metal oxides comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V;
performing a second atomic layer deposition process to deposit a second ALD layer onto the first ALD layer, the second atomic layer deposition process using a metal oxide second precursor different from the first precursor and selected from a group of metal oxides comprising Al, Zn, Hf, Ta, Zr, Ti, Sn, Nb, Y, Ga, and V; and
performing a main sol-gel coating process to form a main sol-gel coating layer directly onto the second ALD layer, the main sol-gel coating layer having a chemical composition different from the first ALD layer and the second ALD layer.