SEMICONDUCTOR DEVICES INCORPORATING QUANTUM DOTS
In accordance with one or more aspects of the present disclosure, a semiconductor device is provided. The semiconductor device may include: a plurality of light-emitting devices comprising a first light-emitting device, a second light-emitting device, and a third light-emitting device; and a light-conversion device with embedded quantum dots. In some embodiments, a first portion of the light-conversion device includes a first plurality of quantum dots for converting light produced by the first light-emitting device into light of a first color, and a second portion of the light-conversion device includes a second plurality of quantum dots for converting light produced by the second light-emitting device into light of a second color. The third light-emitting device emits light of a third color.
1 . A semiconductor device, comprising:
a light-emitting structure for emitting light of a first color, the light-emitting structure comprising:
a plurality of epitaxial layers of a group III-V material; and
an active layer comprising one or more quantum well structures; and
a light-conversion device bonded to the light-emitting structure, the light-conversion device comprising:
one or more nanoporous structures; and
a plurality of quantum dots placed in the nanoporous structures, wherein the plurality of quantum dots has an emission wavelength corresponding to light of a second color.
2 . The semiconductor device of claim 1 , further comprising a first ohmic contact and a second ohmic contact, wherein the second ohmic contact and the nanoporous structure are disposed on opposite sides of the light-emitting structure.
3 . The semiconductor device of claim 2 , wherein the first ohmic contact and the porous structure are formed on the same side of the light-emitting structure.
4 . The semiconductor device of claim 1 , wherein the nanoporous structure is not in direct contact with the light-emitting structure.
5 . The semiconductor device of claim 4 , wherein the semiconductor device further comprises a support layer positioned between the light-emitting structure and the nanoporous structure, wherein the support layer comprises Al 2 O 3 .
6 . The semiconductor device of claim 4 , wherein the nanoporous structure and the light-emitting structure are separated by a space.
7 . The semiconductor device of claim 1 , wherein a sidewall of the nanoporous structure is coated with a reflective material.
8 . The semiconductor device of claim 1 , wherein the nanoporous structure comprises at least one of a semiconductor material, glass, plastic, metal, or polymer.
9 . The semiconductor device of claim 1 , wherein the group III-V material comprises gallium nitride.
10 . The semiconductor device of claim 1 , wherein the light-conversion device is attached to the light-emitting structure using glue.