作者
Longjiang Xing, Ze-Lin Zhu, Jia He, Zhipeng Qiu, Zhiwen Yang, Dan Lin, Wen-Cheng Chen, Qingdan Yang, Shaomin Ji, Yanping Huo, Chun-Sing Lee
发表日期
2021/10/1
期刊
Chemical Engineering Journal
卷号
421
页码范围
127748
出版商
Elsevier
简介
Three new anthracene-based emitters, 4-(10-(9,9′-spirobi[fluoren]-2-yl)anthracen-9-yl)benzonitrile (SBF-AnCN), 4-(10-(9,9-diphenyl-9H-fluoren-2-yl)anthracen-9-yl)benzonitrile (DPF-AnCN) and 4-(10-(9,9-dimethyl-9H-fluoren-2-yl)anthracen-9-yl)benzonitrile (DMF-AnCN) are developed for deep blue organic light-emitting diodes (OLEDs). Their photophysical properties, thermal properties, molecular configurations and device performances have been systematically investigated. As verified by crystallographic study, these anthracene derivatives possess highly twisted configuration, leading to deep-blue light emission by restraining π-conjugation extension. Furthermore, the difference in the molecular packing manner may influence the photoluminescence quantum yields (PLQYs) in solid state and the proportion of singlet exciton harvested by triplet–triplet annihilation (TTA) process. A nondoped device fabricated …
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L Xing, ZL Zhu, J He, Z Qiu, Z Yang, D Lin, WC Chen… - Chemical Engineering Journal, 2021