Quantum dot composition, quantum dot film and light-emitting element thereof

Abstract

This invention discloses a quantum dot composition, a quantum dot film, and a light-emitting element thereof. The quantum dot composition comprises perovskite quantum dots (A), an organosilicon (B), and a thermoplastic polymer (C). Based on a total amount of 100 parts by weight of the quantum dot composition, the amount of perovskite quantum dots (A) is from 0.02 parts by weight to 50 parts by weight, and / or the total amount of organosilicon (B) and thermoplastic polymer (C) is from 50 parts by weight to 99.8 parts by weight. The weight ratio of organosilicon (B) to thermoplastic polymer (C) is from 10:1 to 1:10.

Claims

1. A quantum dot composition comprising: The perovskite quantum dots (A); an organosilicon (B); and a thermoplastic polymer (C), wherein the total amount of the quantum dot composition used is 100 parts by weight, the amount of the perovskite quantum dots (A) used is from 0.02 parts by weight to 50 parts by weight, and / or the total amount of the organosilicon (B) and the thermoplastic polymer (C) used is from 50 parts by weight to 99.8 parts by weight, and the weight ratio of the amount of the organosilicon (B) used to the amount of the thermoplastic polymer (C) used is from 10:1 to 1:10, wherein the organosilicon (B) is a copolymer of organohydrogen polysiloxane (B1) and organosiloxane (B2), the organohydrogen polysiloxane (B1) comprising at least two silanium groups, and the organosiloxane (B2) comprising at least two unsaturated groups.

2. The quantum dot composition as claimed in claim 1, wherein the perovskite quantum dot (A) comprises a perovskite-type crystalline structure represented by the following formula (A-1): ABX3 Formula (A-1), in which A represents a monovalent cation, B represents a divalent cation, and X represents a halide anion.

3. The quantum dot composition as claimed in claim 1, wherein the organohydrogen polysiloxane (B1) comprises a structure represented by the following formula (B1-1): Formula (B1-1), in which R1 to R8 each represent hydrogen, a substituted or unsubstituted C1 to C20 alkyl group or a substituted or unsubstituted C6 to C20 aryl group.

4. The quantum dot composition as claimed in claim 1, wherein the organopolysiloxane (B2) comprises a structure represented by the following formula (B2-1): Formula (B2-1), in which R9 to R16 each represent a substituted or unsubstituted C3 to C20 alkylenyl, a substituted or unsubstituted C3 to C20 cycloalkylenyl, a substituted or unsubstituted C3 to C20 alkynyl, vinyl, acrylene, a substituted or unsubstituted C1 to C20 alkyl or a substituted or unsubstituted C6 to C20 aryl, and R9 to R16 comprises at least two unsaturated bonds, and x represents an integer from 5 to 20.

5. The quantum dot composition as claimed in claim 1, wherein the thermoplastic polymer (C) comprises polymethyl methacrylate, polyethyl methyl methacrylate, polylauryl methyl methacrylate, polyisobutylene acrylate, ethylene-vinyl acetate copolymer, polystyrene, polyvinyl chloride, polyvinyl acetate, polyethylene terephthalate, polyethylene oxide, polycarbonate, polyethylene, polypropylene, or combinations thereof.

6. The quantum dot composition as described in claim 5, wherein the quantum dot composition further comprises a non-silicone thermosetting resin (D).

7. The quantum dot composition as claimed in claim 6, wherein the non-silicone thermosetting resin (D) includes epoxy resin, petroleum resin, phenolic resin, polyester resin, unsaturated polyester resin, urea-formaldehyde resin, melamine resin, polyetheretherketone resin, polyurethane resin, butyl rubber, isobutylene rubber, acrylic rubber, polyurethane rubber, or combinations thereof.

8. The quantum dot composition as claimed in claim 6, wherein the weight ratio of the amount of said thermoplastic polymer (C) to the amount of said non-silicone thermosetting resin (D) is from 0.01:1 to 100:

1.

9. A quantum dot film formed by hardening a quantum dot composition according to any one of claims 1 to 8.

10. A light-emitting element, comprising: substrate; A quantum dot film is disposed on the substrate, wherein the quantum dot film is formed by curing the quantum dot composition described in any one of claims 1 to 8.

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