Light emitting device with nanostructured phosphor

摘要

Embodiments of the invention include a light emitting device (LED 10), a first wavelength converting material (13, in a matrix 14 to form a layer 12), and a second wavelength converting material (forming layer 16). The first wavelength converting material includes a nanostructured wavelength converting material. The nanostructured wavelength converting material includes particles having at least one dimension that is no more than 100 nm in length. The first wavelength converting material (13) is spaced apart from the light emitting device (10).

主权项

1. A structure comprising:
a light emitting device comprising a semiconductor device; a first wavelength converting material, wherein the first wavelength converting material comprises a nanostructured wavelength converting material, the nanostructured wavelength converting material comprising particles having at least one dimension that is no more than 100 nm in length; and a second wavelength converting material, the second wavelength converting material comprising a ceramic phosphor disposed in direct contact with the light emitting device; wherein the first wavelength converting material is spaced apart from the light emitting device; and wherein the first wavelength converting material is disposed in a sealed enclosure formed by a first dielectric layer that forms an enclosure around a bottom and sides of the first wavelength converting material and a second dielectric layer disposed over a top of the first wavelength converting material, wherein the first and second dielectric layers are different materials, and wherein the second dielectric layer is in direct contact with the first wavelength converting material.