Quantum dot, color conversion panel, and display device including the same
A quantum dot, a color conversion panel, and a display device, the quantum dot including a core; and a shell layer positioned outside of the core, wherein at least one of the core and the shell layer is doped with aluminum, silicon, titanium, magnesium, or zinc, and the core includes a Group III-V compound.
1. A color conversion panel, comprising:
a substrate;
a first color conversion layer and a second color conversion layer positioned on the substrate; and
a planarization layer covering the first color conversion layer and the second color conversion layer, wherein:
each of the first color conversion layer and the second color conversion layer includes a plurality of semiconductor nanoparticles,
each semiconductor nanoparticle of the plurality of semiconductor nanoparticles includes a core and a shell layer positioned outside of the core, the shell layer comprising a first portion and a second portion, the second portion being farther from the core than the first portion, and
the second portion of the shell layer is doped with aluminum oxide, silicon oxide, titanium oxide, magnesium oxide, or zinc oxide to have a different composition than the first portion.
2. The color conversion panel as claimed in claim 1 , wherein the core includes a Group III-V compound.
3. The color conversion panel as claimed in claim 2 , wherein:
the core further includes a Group II-VI compound, and
the core includes an alloy of the Group III-V compound and the Group II-VI compound.
4. The color conversion panel as claimed in claim 1 , further comprising a light filter layer positioned between the planarization layer and the first color conversion layer and positioned between the planarization layer and the second color conversion layer, wherein:
the light filter layer includes a plurality of layers, and
the plurality of layers have a structure in which at least two layers having different refractive indexes are alternately arranged.
5. The color conversion panel as claimed in claim 1 , further comprising a polarization layer comprising:
a polarization pattern including a metal material, and
an insulating layer covering the polarization pattern.
6. The color conversion panel as claimed in claim 1 , further comprising a light blocking layer positioned between the first color conversion layer and the second color conversion layer.
7. The color conversion panel as claimed in claim 1 , wherein:
the first portion is adjacent to the core.
8. The color conversion panel as claimed in claim 1 , wherein
the core and the first portion of the shell layer are doped with aluminum, silicon, titanium, magnesium, or zinc.
9. A display device, comprising:
a display panel; and
the color conversion panel of claim 1 .
10. The display device as claimed in claim 9 , further comprising a polarization layer comprising:
a polarization pattern including a metal material, and
an insulating layer covering the polarization pattern.
11. The display device as claimed in claim 9 , wherein the color conversion panel further includes a light blocking layer positioned between the first color conversion layer and the second color conversion layer.
12. The display device as claimed in claim 11 , wherein a width of the light blocking layer gradually increases along a direction from the substrate toward the planarization layer.
13. The display device as claimed in claim 9 , wherein the core includes:
a Group III-V compound, or
an alloy of the Group III-V compound and a Group II-VI compound.