Lumiphoric particle structures in wavelength conversion elements for light-emitting diodes and related methods

Abstract

Solid-state lighting devices including light-emitting diodes (LEDs) and more particularly lumiphoric particle structures in wavelength conversion elements for LEDs and related methods are disclosed. Lumiphoric particle structures include coatings that provide improved optical, mechanical, and/or thermal characteristics when distributed within host materials of wavelength conversion elements. Coatings are pre-formed on lumiphoric particles before the lumiphoric particles are integrated with wavelength conversion elements. Heat treatments associated with firing wavelength conversion elements may diffuse coating materials within wavelength conversion elements to form graded material structures for further improvements to optical, mechanical, and/or thermal characteristics.

Dependencies are inferred from the claim text.