The host material incorporates a rigid silicon-locked framework to prevent molecular rotation and improve heat resistance.
A silicon-locked phosphine oxide host structure that provides superior thermal stability and efficient energy transfer. 2. Material Design and Synthesis 124694
High-energy blue excitons often lead to material degradation, particularly at the host-guest interface. 124694
The silicon-locked host enables highly efficient blue emission with minimized non-radiative loss. 124694
The development of silicon-locked phosphine oxide hosts represents a major step forward for blue OLED technology. The dual encapsulation strategy not only improves immediate performance metrics but also addresses the long-term stability issues that have historically hindered the commercial application of high-efficiency blue emitters.