Organic dibenzofuran increases intramolecular binding energy/ enhances hole mobility for record QLED efficiency, brightness, stability and lifetime
https://phys.org/news/2025-08-high-energy-material-qled-efficiency.html "also reducing electron back-leakage/ surface defects, unlike triphenylamine-based hole transport layer molecular structure's hole mobility/ electron-blocking capability degradation... high 25.7% external quantum efficiency in green QLED devices, 1.46 million hours lifetime (T₅₀ at 100 cd m⁻²) which is 66X longer than conventional devices, demonstrating long-term stability... highest performance among materials in same class... overcomes limitations of conventional materials that have weak molecular bonds"