Quantum dot compositions
AssigneeNanoco Technologies Ltd.
InventorsCong-Duan Vo, Imad Naasani, Amilcar Pillay Narrainen, Yien Ta, Emma Cherie Hogarth, Alexandra Shannon, Ross Jalmari Mera-Pirttijarvi, Elliot Stuart Poucher
Life of this patent
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Abstract
Multi-phase polymer films of quantum dots (QDs) are disclosed. The QDs are absorbed in a host matrix, which dispersed within an outer polymer phase. The host matrix is hydrophobic and is compatible with the surface of the QDs. The host matrix may also include a scaffolding material that prevents the QDs from agglomerating. The outer polymer is typically more hydrophilic and prevents oxygen from contacting the QDs.
Claims18
A two-phase composition comprising:
- a hydrophobic inner phase comprising a hydrophobic solvent selected from fatty acid esters and ethers, isopropyl myristate, isopropyl palmitate, phenyl palmitate, phenyl myristate, natural and synthetic oils, heat transfer liquids, fluorinated hydrocarbons, dibutyl sebacate, and diphenyl ether;
- quantum dots (QDs) dispersed within the inner phase;
- and
- a hydrophilic outer phase.
A two-phase composition comprising:
- a hydrophobic inner phase comprising a hydrophobic solvent;
- quantum dots (QDs) dispersed within the inner phase;
- and
- an epoxy resin outer phase.
A two-phase composition comprising:
- a hydrophobic inner phase comprising a hydrophobic solvent;
- quantum dots (QDs) dispersed within the inner phase;
- and
- a bisphenol A-epoxy resin outer phase.
A two-phase composition comprising:
- a hydrophobic inner phase comprising a hydrophobic solvent;
- quantum dots (QDs) dispersed within the inner phase;
- and
- an outer phase comprising an epoxy-acrylate resin and one or more of 2-hydroxy ethyl acrylate (HEA), 2-hydroxy ethyl methacrylate (HEMA), hydroxy propyl acrylate (HPA), hydroxy propyl methacrylate (HPMA) or a carboxylic acid (meth)acrylate.
A method of making a quantum dot (QD)-containing film, the method comprising:
- dispersing QDs in a host phase, wherein the host phase comprises a hydrophobic solvent selected from fatty acid esters and ethers, isopropyl myristate, isopropyl palmitate, phenyl palmitate, phenyl myristate, natural and synthetic oils, heat transfer liquids, fluorinated hydrocarbons, dibutyl sebacate, and diphenyl ether,
- adding the host phase to a solution of an outer phase resin to form a two-phase mixture, and
- forming a film of the two-phase mixture.
Dependencies are inferred from the claim text.