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US 10,840,450 B2Granted
Polymer, and mixture or formulation, and organic electronic device containing same, and monomer thereof
AssigneeGuangzhou Chinaray Optoelectronic Materials Ltd.
InventorsJunyou Pan, Hong Huang
Life of this patent
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Abstract
Disclosed are a polymer, and a mixture or a formulation and an organic electronic device containing same, and applications thereof, and further a monomer of which the polymer is made; the polymer comprises on its side chain a repeating structure unit E, characterizing in that its S1(E)−T1(E))≤0.35 eV or even less, which may allow the said polymer having thermally activated delayed fluorescence (TADF) property. Thus a TADF polymer suitable for printing processes is provided, thereby reducing OLED manufacturing costs.
Claims11
A polymer having the following general structural formula:
- wherein E is a structural unit,
- the energy difference between the singlet energy level and the triplet energy level of the structural unit E, i.e. (S1(E)−T1(E)), is less than or equal to 0.35 eV,
- x and y are the molar fractions,
- x+y=1, and
- G is an organic functional group selected from the group consisting of a hole-injecting or hole-transporting group, a hole-blocking group, an electron-injecting or electron-transporting group, an electron-blocking group, an organic host group, a singlet emitter group, and a triplet emitter group.
2 more elements
Dependencies are inferred from the claim text.