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US 2016/0104847 A1Published application
Novel compounds and uses in devices
AssigneeUniversal Display Corporation
InventorsChuanjun Xia, Ting-Chih Wang, Chun Lin
Life of this patent
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Abstract
This invention discloses a novel multicomponent system or a single compound that is capable of performing triplet-triplet annihilation up conversion process. (TTA-UC) A solution or solid film that comprises this TTA-UC system or compound is provided. This system or compound can be used in an optical or optoelectronic device.
Claims22
A formulation comprising a mixture of:
- a sensitizer;
- an acceptor;
- and
- an emitter;
- wherein the acceptor has a first triplet energy lower than a first triplet energy of the sensitizer;
- wherein the emitter has a first singlet energy lower than a first singlet energy of the acceptor;
- and
- wherein the sensitizer, the acceptor, and the emitter are jointly capable of performing triplet-triplet annihilation upconversion of light incident on the formulation to emit a luminescent radiation comprising a radiation component from the first singlet energy of the emitter.
5 more elements
A first device comprising a first organic layer;
- the first organic layer comprising a mixture of:
- a sensitizer;
- an acceptor;
- and
- an emitter;
- wherein the acceptor has a first triplet energy lower than a first triplet energy of the sensitizer;
- wherein the emitter has a first singlet energy lower than a first singlet energy of the acceptor;
- and
- wherein the first device are capable of performing triplet-triplet annihilation upconversion of light incident on the first organic layer to emit a luminescent radiation comprising a radiation component from the first singlet energy of the emitter.
6 more elements
20-22. (canceled)
A compound for triplet-triplet annihilation upconversion comprising:
- a sensitizer group;
- an acceptor group;
- and
- an emitter group;
- wherein the sensitizer group, the acceptor group, and the emitter group are connected together through covalent bonds by a plurality of spacer groups;
- wherein the acceptor group has a first triplet energy lower than a first triplet energy of the sensitizer group;
- wherein the emitter group has a first singlet energy lower than a first singlet energy of the acceptor group;
- and
- wherein the compound is capable of performing triplet-triplet annihilation upconversion of light incident on the compound to emit a luminescent radiation comprising a radiation component from the first singlet energy of the emitter group.
6 more elements
24-42. (canceled)
Dependencies are inferred from the claim text.