Quantum dot, curable composition comprising the same, cured layer using the composition, color filter including the cured layer, and display device including the cured layer
A quantum dot surface-modified with a specific compound, a non-solvent curable composition including the quantum dot, a solvent based curable composition including the quantum dot, a cured layer manufactured utilizing the curable composition, a color filter including the cured layer, and a display device including the cured layer are disclosed.
1. A quantum dot surface-modified with a compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
R 1 is a substituted or unsubstituted C1 to C10 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
L 1 to L 3 are each independently a substituted or unsubstituted C1 to C10 alkylene group, an ester group, or an ether group, and
n is an integer of 3 to 20,
provided that when L 2 is an ester group and when L 3 is an unsubstituted C7 to C10 alkylene group:
n is an integer of 4 to 20,
provided that when L 2 is an ester group and when L 3 is an unsubstituted C1 to C6 alkylene group:
n is an integer of 4 to 20 and R 1 is selected from the group consisting of a substituted or unsubstituted C11 to C20 aryl group, a moiety represented by Formula 3-1, and a moiety represented by Formula 3-2, and
provided that when L 2 is a substituted or unsubstituted C1 to C10 alkylene group or an ether group and when L 3 is a substituted or unsubstituted C2 alkylene group:
L 1 is an ester group or an ether group, or R 1 is a substituted or unsubstituted C15 to C20 aryl group:
wherein in Formulae 3-2 and 3-2, * represents a binding site to a neighboring oxygen atom.
2. The quantum dot of claim 1 , wherein
L 1 and L 3 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and
L 2 is an ester group or an ether group.
3. The quantum dot of claim 1 , wherein the quantum dot has a maximum fluorescence emission wavelength at about 500 nm to about 680 nm.
4. A quantum dot surface-modified with a compound represented by Chemical Formula 1:
wherein, in Chemical Formula 1,
R 1 is a substituted or unsubstituted C1 to C10 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
L 1 to L 3 are each independently a substituted or unsubstituted C1 to C10 alkylene group, an ester group, or an ether group, and
n is an integer of 3 to 20,
provided that when L 2 is an ester group and when L 3 is an unsubstituted C7 to C10 alkylene group:
n is an integer of 4 to 20,
provided that when L 2 is an ester group and when L 3 is an unsubstituted C1 to C6 alkylene group:
n is an integer of 4 to 20 and R 1 is selected from the group consisting of a substituted or unsubstituted C11 to C20 aryl group, a moiety represented by Formula 3-1, and a moiety represented by Formula 3-2, and
provided that when L 2 is a substituted or unsubstituted C1 to C10 alkylene group or an ether group and when L 3 is a substituted or unsubstituted C2 alkylene group:
L 1 is an ester group or an ether group, or R 1 is a substituted or unsubstituted C15 to C20 aryl group:
wherein in Formulae 3-2 and 3-2, * represents a binding site to a neighboring oxygen atom,
wherein the compound represented by Chemical Formula 1 comprises at least one selected from compounds represented by Chemical Formula 1-4 to Chemical Formula 1-5:
5. A non-solvent curable composition comprising
a quantum dot surface-modified with a compound represented by Chemical Formula 1,
a polymerizable monomer having a carbon-carbon double bond at a terminal end, and
a light diffusing agent,
wherein the polymerizable monomer is about 35 wt % to about 80 wt % in amount based on a total weight of the non-solvent curable composition, and
the non-solvent curable composition does not contain any solvent:
wherein, in Chemical Formula 1,
R 1 is a substituted or unsubstituted C1 to C10 alkyl group or a substituted or unsubstituted C6 to C20 aryl group,
L 1 to L 3 are each independently a substituted or unsubstituted C1 to C10 alkylene group, an ester group, or an ether group, and
n is an integer of 3 to 20,
provided that when L 2 is an ester group and when L 3 is an unsubstituted C7 to C10 alkylene group:
n is an integer of 4 to 20, and
provided that when L 2 is an ester group and when L 3 is an unsubstituted C1 to C6 alkylene group:
n is an integer of 4 to 20 and R 1 is selected from the group consisting of a substituted or unsubstituted C11 to C20 aryl group, a moiety represented by Formula 3-1, and a moiety represented by Formula 3-2:
wherein in Formulae 3-2 and 3-2, * represents a binding site to a neighboring oxygen atom.
6. The non-solvent curable composition of claim 5 , wherein the polymerizable monomer has a molecular weight of about 220 g/mol to about 1,000 g/mol.
7. The non-solvent curable composition of claim 5 , wherein the polymerizable monomer is represented by Chemical Formula 2:
wherein, in Chemical Formula 2,
R 2 and R 3 are each independently a hydrogen atom or a substituted or unsubstituted C1 to C10 alkyl group,
L 4 and L 6 are each independently a substituted or unsubstituted C1 to C10 alkylene group, and
L 5 is a substituted or unsubstituted C1 to C10 alkylene group or an ether group.
8. The non-solvent curable composition of claim 5 , wherein the quantum dot is about 1 wt % to about 60 wt % in amount based on the total weight of the non-solvent curable composition.
9. The non-solvent curable composition of claim 5 , wherein the light diffusing agent comprises barium sulfate, calcium carbonate, titanium dioxide, zirconia, or a combination thereof.
10. The non-solvent curable composition of claim 5 , wherein the non-solvent curable composition further comprises a polymerization initiator.
11. The non-solvent curable composition of claim 5 , wherein the non-solvent curable composition further comprises a polymerization inhibitor; malonic acid; 3-amino-1,2-propanediol; a silane-based coupling agent; a leveling agent; a fluorine-based surfactant; or a combination thereof.
12. A solvent based curable composition comprising the quantum dot of claim 1 ;
a binder resin; and
a solvent.
13. The solvent based curable composition of claim 12 , further comprising a polymerizable monomer, a polymerization initiator, a light diffusing agent, or a combination thereof.
14. The solvent based curable composition of claim 12 , wherein the solvent based curable composition is a photosensitive resin composition.
15. A curing layer manufactured utilizing the composition of claim 5 .
16. A curing layer manufactured utilizing the composition of claim 12 .
17. A color filter comprising the cured layer of claim 15 .
18. A color filter comprising the cured layer of claim 16 .
19. A display device comprising the color filter of claim 17 .
20. A display device comprising the color filter of claim 18 .