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, wherein each of the plurality of light-emitting devices comprises a first ohmic contact and a second ohmic contact; and a light-conversion device with embedded quantum dots, wherein 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, wherein 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, and wherein the third light-emitting device emits light of a third color.
1. A method, comprising:
providing a light-emitting structure comprising a first light-emitting device, a second light-emitting device, and a third light-emitting device, wherein each of the first light-emitting device, the second light-emitting device, and the third light-emitting device comprises a first ohmic contact and a second ohmic contact;
fabricating a light-conversion device, comprising:
etching a solid material to form a plurality nanoporous structures separated by a plurality of trenches;
placing, in a first nanoporous structure of the plurality of nanoporous structures, a first plurality of quantum dots for converting light produced by the first light-emitting device into light of a first color; and
placing, in a second nanoporous structure of the plurality of nanoporous structures, a second plurality of quantum dots for converting light produced by the second light-emitting device into light of a second color, wherein the third light-emitting device emits light of a third color; and
attaching the light-emitting structure to the light-conversion device after the light-conversion device is fabricated.
2. The method of claim 1 , wherein the first plurality of quantum dots is placed in the first nanoporous structure of the light-conversion device using at least one of a photolithography method or an inkjet printing method.
3. The method of claim 1 , wherein placing the first plurality of quantum dots in the first nanoporous structure comprises dispensing, using a dispensing machine, a first liquid containing the first plurality of quantum dots on the first nanoporous structure of the light-conversion device, and wherein placing the second plurality of quantum dots in the second nanoporous structure comprises dispensing, using the dispensing machine, a second liquid containing the second plurality of quantum dots on the second nanoporous structure of the light-conversion device.
4. The method of claim 1 , wherein fabricating the light-conversion device comprises:
coating at least one sidewall of at least one of the trenches with a metallic material.
5. The method of claim 4 , wherein fabricating the light-conversion device further comprises:
growing one or more semiconductor layers on a growth template;
forming the plurality of nanoporous structures in the one or more semiconductor layers; and
removing the growth template from the semiconductor layers.
6. The method of claim 4 , wherein positions and dimensions of the plurality of trenches correspond to positions and dimensions of the first light-emitting device, the second light-emitting device, and the third light-emitting device.
7. The method of claim 4 , wherein attaching the light-conversion device to the light-emitting structure comprises bonding the nanoporous structures to a substrate of the light-emitting structure.
8. The method of claim 1 , wherein the first ohmic contact and the second ohmic contact are deposited on a first side of the light-emitting structure, and wherein attaching the light-emitting structure to the light-conversion device after the light-conversion device is fabricated comprises bonding the fabricated light-conversion device on a second side of the light-emitting structure.
9. The method of claim 1 , wherein the first color is red, wherein the second color is green, and wherein the third color is blue.