Trap-Controlled Operational Stability in Dibenzofuran-Based Hosts for Blue TADF-OLEDs

Key Points

• The aim is to investigate how different dibenzofuran-based hosts affect the stability of blue TADF-OLEDs under electrical stress.
• Conducted a structure-property analysis of four dibenzofuran-biphenyl derivatives.
• Assessed the response of hosts to electrical stress.
• Evaluated the triplet energy levels of the hosts.
• Identified a correlation between host structure and operational stability.
• Demonstrated that higher triplet energy contributes to improved performance under electrical stress.