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US 2025/0060518 A1Published application
Nanoparticle film patterning method, method for producing light-emitting element, method for producing display device, and light-emitting element
AssigneeSharp Kabushiki Kaisha
InventorYuma YAGUCHI
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Abstract
A non-dispersive ligand-containing portion containing a monodentate ligand that is coordinated to a QD to render the QD non-dispersible in a solvent is formed in a part of a QD film containing the QD, and a portion of the QD film other than the non-dispersive ligand-containing portion is removed by a solvent to form a QD layer pattern.
Claims19
A nanoparticle film patterning method comprising:
- forming a non-dispersive ligand-containing portion containing a nanoparticle and a monodentate non-dispersive ligand that is coordinated to the nanoparticle to render the nanoparticle non-dispersible in a solvent in a part of a nanoparticle film containing the nanoparticle;
- and
- removing a portion of the nanoparticle film other than the non-dispersive ligand-containing portion with a first organic solvent to form a nanoparticle layer pattern.
A light-emitting element comprising:
- a nanoparticle layer pattern containing a nanoparticle,
- wherein the nanoparticle layer pattern includes
- a non-dispersive ligand-containing portion containing a monodentate non-dispersive ligand that is coordinated to the nanoparticle to render the nanoparticle non-dispersible in a solvent and
- a dispersive ligand-containing portion containing at least dispersive ligand that is coordinated to the nanoparticle to render the nanoparticle dispersible in one of a polar organic solvent and a non-polar organic solvent,
- the dispersive ligand-containing portion is formed adjacent to the non-dispersive ligand-containing portion in a part of an outer edge portion of the non-dispersive ligand-containing portion, and
- the dispersive ligand contained in the dispersive ligand-containing portion is coordinated to the nanoparticle to which the non-dispersive ligand is coordinated.
3 more elements
Dependencies are inferred from the claim text.