Modulating resonance structures toward highly efficient violet-blue organic light-emitting diodes with narrow emission

作者：Xinyu Wang, Hanlin Gan, Mingliang Xie, Wenle Tan, Pengfei Niu, Mingke Li, Xinru Liao, Bohan Wang, Lei Ying, Yue Yu, Yuguang Ma · 发表于：Chemical Science · 年份：2025 · DOI：10.1039/d5sc07474f · 被引用次数：5 · 研究领域：Organic Light-Emitting Diodes Research、Luminescence and Fluorescent Materials、Magnetism in coordination complexes

-hexane, TB-tCz shows significant spectral broadening in different solvents and the doped film, while BO-2Cz maintains narrow violet-blue emission with high environmental tolerance. As a result, the single-doped device with BO-2Cz achieves electroluminescence at 404 nm (FWHM = 31 nm), CIE coordinates (0.162, 0.017), and a maximum external quantum efficiency of 7.3%, simultaneously realizing short-wavelength and narrow emission.