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US 12,224,381 B2Granted
Element and electronic device having a mixed layer of quantum dots and nanoparticles
AssigneeSharp Kabushiki Kaisha
InventorKenji Kimoto
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Abstract
In an element provided with a QD layer including QD phosphor particles, a first hole transport layer located between a first electrode and the QD layer is formed of a continuous film of a first carrier transport material. A second hole transport layer located between the first hole transport layer and the QD layer includes nanoparticles formed of a second carrier transport material.
Claims20
An element comprising:
- a first electrode;
- a second electrode;
- a quantum dot phosphor layer located between the first electrode and the second electrode and including quantum dot phosphor particles;
- a first carrier transport layer located between the first electrode and the quantum dot phosphor layer and formed of a continuous film of a first carrier transport material;
- and
- a mixed layer located between the first carrier transport layer and the quantum dot phosphor layer and including (i) the quantum dot phosphor particles, and (ii) nanoparticles formed of a second carrier transport material,
- wherein a part of the quantum dot phosphor particles included in the mixed layer is in contact with the first carrier transport layer.
4 more elements
An element comprising:
- a first electrode;
- a second electrode;
- a quantum dot phosphor layer located between the first electrode and the second electrode and including quantum dot phosphor particles;
- a first carrier transport layer located between the first electrode and the quantum dot phosphor layer and formed of a continuous film of a first carrier transport material;
- and
- a mixed layer located between the first carrier transport layer and the quantum dot phosphor layer and including (i) the quantum dot phosphor particles, and (ii) nanoparticles formed of a second carrier transport material,
- wherein, when in the mixed layer,
- a center of one of the nanoparticles closest to the quantum dot phosphor layer is defined as a nanoparticle first center, and
- a center of one of the nanoparticles in contact with the first carrier transport layer is defined as a nanoparticle second center, and wherein as the quantum dot phosphor particles included in the mixed layer,
- a first quantum dot phosphor particle having a center located closer to the first carrier transport layer, as compared with the nanoparticle first center, is present, and
- a second quantum dot phosphor particle occupying at least a part of a space located closer to the first carrier transport layer, as compared with the nanoparticle second center, is present.
8 more elements
Dependencies are inferred from the claim text.