Boron-nitrogen compound and organic electroluminescent device and application thereof

• Main Authors: ZHU XU, ZHAO XIAOYU, ZHANG LEI, TANG LIJUN, CAI YUXIN, XU SHIXUAN, ZHU YONGFENG
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2025
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; ADHESIVES; CHEMISTRY; DYES; ELECTRICITY; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC CHEMISTRY; PAINTS; POLISHES

The invention relates to the technical field of preparation of organic photoelectric materials, in particular to a boron-nitrogen compound and an organic electroluminescent device and application thereof. The boron-containing nitrogen compound provided by the invention has good carrier transmission capability, good energy transmission performance between a subject and an object, good exciton utilization efficiency and good thermal stability; a large-steric-hindrance triphenyl silicon group is introduced around a luminescent group, so that the interaction force between luminescent molecules can be weakened, and the concentration quenching effect can be reduced; when the compound is applied to the organic electroluminescent device as a functional layer, especially as a luminescent layer, higher current efficiency and longer service life of the device are realized. 本发明涉及有机光电材料制备技术领域，具体涉及一种硼氮化合物及其有机电致发光器件与应用。本发明所提供的含硼氮化合物具有较好的载流子传输能力，以及良好的主体和客体之间的能量传输性能和激子利用效率，及热稳定性能；在发光基团周围引入大位阻三苯基硅基团有助于减弱发光分子之间的相互作用力，可以降低浓度猝灭效应