Nanocrystal structures
View Patent ↗A structure including a grating and a semiconductor nanocrystal layer on the grating, can be a laser. The semiconductor nanocrystal layer can include a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix. The grating can have a periodicity from 200 nm to 500 nm.
1. A laser comprising:
a grating; and
a semiconductor nanocrystal layer disposed on the grating, the layer including a plurality of semiconductor nanocrystals including a Group II-VI compound, the nanocrystals being distributed in a metal oxide matrix.
2. The laser of claim 1 , wherein the layer includes greater than 5% by volume of semiconductor nanocrystals.
3. The laser of claim 1 , wherein the semiconductor nanocrystal is overcoated with a second semiconductor material.
4. The laser of claim 1 , wherein the plurality of nanocrystals have a monodisperse distribution of sizes.
5. The structure of claim 1 , wherein the grating has a periodicity from 200 nm to 500 nm.
6. The structure of claim 1 , wherein the grating has a periodicity from 300 nm to 400 nm.