Patent ID: 11912914
Assignee: LUMILEDS, LLC
Field: Surface technology, coating (Chemistry)
Classification: CPC C  F  H | IPC C  F  H

Claim 4:
5. The method according to claim 1, wherein the main sol-gel coating process comprises:
providing a mixture of an alcohol, ammonia, water, the luminescent core with the primer layer and the main ALD coating layer, and a metal alkoxide precursor;
agitating the mixture allowing a sol-gel coating layer to be formed on the main ALD-coating layer, wherein the metal alkoxide precursor is titanium alkoxide, silicon alkoxide, and or aluminum alkoxide;
retrieving the luminescent core with the primer layer, the main ALD coating layer and the main sol-gel coating layer from the mixture; and
subjecting the retrieved luminescent core with the primer layer, the main ALD coating layer and the main sol-gel coating layer to a heat treatment to provide the luminescent particle with hybrid coating.