Highly efficient blue organic light-emitting diodes from pyrimidine-based thermally activated delayed fluorescence emitters

• Published in: Journal of materials chemistry. C, Materials for optical and electronic devices Vol. 6; no. 9; pp. 2351 - 2359
• Main Authors: Li, Bowen, Li, Zhiyi, Hu, Taiping, Zhang, Yong, Wang, Ying, Yi, Yuanping, Guo, Fengyun, Zhao, Liancheng
• Format: Journal Article
• Language: English
• Published: Cambridge Royal Society of Chemistry 2018
• Subjects: Diodes; Emitters; Fluorescence; Light emitting diodes; Organic light emitting diodes; Photoluminescence; Quantum efficiency

Three highly efficient blue thermally activated delayed fluorescence (TADF) emitters, 2SPAc-HPM , 2SPAc-MPM and 2SPAc-PPM , have been synthesised based on pyrimidine (PM), 2-methylpyrimidine (MPM) and 2-phenylpyrimidine (PPM) as the acceptor and 10 H -spiro[acridan-9,9′-fluorene] (2SPAc) as the dono...