Silicon-Containing Compound for Organic Electroluminescence Emission Efficiency

The patent modifies the molecular parameters of organic electroluminescence materials by introducing silicon atoms and specific substituent groups (amine groups, aryl groups) to alter the energy levels and electronic structure. This changes the triplet energy level and HOMO-LUMO gap parameters, enabling improved emission efficiency and reduced driving voltage while maintaining reasonable structural complexity.

The patent creates composite molecular structures by combining silicon atoms with multiple functional groups (amine groups, aryl groups, heteroaryl groups) in a single molecule. This composite approach allows the material to simultaneously achieve high triplet energy level, good charge transport properties, and stable molecular structure, resolving the contradiction between emission efficiency and structural simplicity.

The patent introduces silicon atoms at specific positions within the molecular structure (central silicon atom bonded to multiple functional groups) to locally enhance the triplet energy level and stabilize the molecular structure. This localized modification allows the material to achieve both high emission efficiency through triplet state utilization and improved stability through the inherent stability of silicon-containing structures.

The patent develops organic compounds with silicon atoms that provide stable, long-lived emission properties without requiring the complex metal complexes typically used in phosphorescence materials. The silicon-containing organic compounds offer a more stable and potentially more durable alternative to traditional phosphorescent materials, improving device longevity while maintaining emission efficiency.