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Polymer, composition for organic electroluminescent element, organic electroluminescent element, organic EL display device, organic EL lighting, and manufacturing method for organic electroluminescent element

專利號(hào)
US12133453B2
公開日期
2024-10-29
申請(qǐng)人
Mitsubishi Chemical Corporation（JP Tokyo）
發(fā)明人
Yanjun Li; Tomokazu Umemoto; Hideki Gorohmaru; Koichiro Iida; Kouji Adachi
IPC分類
H01L51/50; C08G73/02; C09K11/06; H10K85/10; H10K50/11; H10K50/15; H10K50/17; H10K71/00; H10K71/12; H10K85/60
技術(shù)領(lǐng)域
group,ring,polymer,aromatic,preferably,formula,layer,or,compound,in
地域： Tokyo

摘要

Provided are: a highly durable polymer having a high hole-injection/transport capacity; and a composition for an organic electroluminescent element, which contains the polymer. The polymer contains a repeating unit represented by the following Formula (1) or a repeating unit represented by the following Formula (2) (wherein, Ar1 and Ar2 each represent an aromatic hydrocarbon group optionally having a substituent, or an aromatic heterocyclic group optionally having a substituent; X represents —C(R7)(R8)—, —N(R9)—, or —C(R11)(R12)—C(R13)(R14)—; R1 and R2 as well as R3 and R6 each independently represent an alkyl group optionally having a substituent; R4 and R5 each independently represent an alkyl group optionally having a substituent, an alkoxy group optionally having a substituent, or an aralkyl group optionally having a substituent; and R7 to R9 and R11 to R14 each independently represent hydrogen, an alkyl group optionally having a substituent, an aralkyl group optionally having a substituent, or an aromatic hydrocarbon group optionally having a substituent).

說明書

When the composition for an organic electroluminescent element according to the present embodiment contains an electron-accepting compound, the content of the electron-accepting compound in the composition for an organic electroluminescent element according to the present invention is usually not less than 0.0005% by mass, preferably not less than 0.001% by mass, but usually 20% by mass or less, preferably 10% by mass or less. Further, the ratio of the electron-accepting compound with respect to the polymer of the present invention in the composition for an organic electroluminescent element is usually 0.5% by mass or higher, preferably 1% by mass or higher, more preferably 3% by mass or higher, but usually 80% by mass or lower, preferably 60% by mass or lower, still more preferably 40% by mass or lower.

The content of the electron-accepting compound in the composition for an organic electroluminescent element is preferably not less than the above-described lower limit since this allows an electron-accepting compound to accept an electron from the polymer and the resistance of the resulting organic layer is reduced, while the content of the electron-accepting compound is preferably not higher than the above-described upper limit since this makes a defect and a thickness variation unlikely to occur in the resulting organic layer.

[Cation Radical Compound]

The composition for an organic electroluminescent element according to the present embodiment may further contain a cation radical compound.

權(quán)利要求

1
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