Research Progress on Acceptor Groups of Thermally Activated Delayed Fluorescent Molecules
SUN Jianan,XU Hui
Key Laboratory of Functional Inorganic Material Chemistry (Chinese Ministry of Education),School of Chemistry and Material Science,Heilongjiang University,Harbin 150080,China
Abstract: In recent years,thermally activated delayed fluorescence (TADF) materials and their electroluminescent devices are developed rapidly. TADF molecules should have small singlet-triplet energy gaps, therefore can facilitate the triplet exciton upconverted to singlet exciton via reverse intersystem crossing (RISC) for radiation. Compared to traditional fluorescence and phosphorescence emitters, besides 100% theoretical internal quantum efficiency and electrogenerated exciton utilization ratio, TADF materials have higher luminescent efficiencies based on pure organic donor-acceptor systems with the features of simple structures and large group library, which attract the extensive attentions. In TADF molecules, acceptors with strong electron-withdrawing ability can effectively facilitate the frontier molecular orbital separation, reduce singlet-triplet energy gaps, improve RISC rate, and simultaneously suppress intermolecular interactions and modify carrier injection and transportation through adjusting molecular configurations. However, in contrast to donor units, the acceptor groups are diverse and completely different regarding to functions, which influences the rational acceptor selection for optoelectronicoptimization. In recent years, the construction of thermally activated delayed fluorescent materials has focused more on the choice of acceptor groups and has achieved remarkable results. Common acceptor groups are phosphine oxide, cyano, triazine, carbonyl, and so on. Intensive research on acceptors groups is critical for regulating intramolecular electronic effects and intermolecular interactions. This review paper summarizes the main acceptor groups used in recently reported TADF molecules and discusses the relationships between acceptor structure and optoelectronic performance, which would be helpful for the subsequent researches on efficient TADF molecular development.
作者简介: 孙佳南,2017年6月毕业于黑龙江大学,获理学学士学位。现在许辉教授的指导下攻读黑龙江大学有机化学专业硕士研究生,研究方向为基于芳香膦氧受体的热激发延迟荧光材料的合成及表征。 许辉,青年长江学者,教授,博士研究生导师,洪堡资深学者,现任黑龙江大学功能无机材料化学教育部重点实验室专职副主任。已在Journal of the American Chemical Society、Angewandte Chemie、Advanced Materials、Chemical Science、Chemical Society Reviews、Chemistry of Materials、Chemistry-A European Journal、Chemical Communications等国际著名学术期刊上发表SCI收录论文93篇。2012年入选教育部新世纪优秀人才支持计划;2016年入选长江学者特聘教授奖励计划青年学者项目;2017年获得黑龙江省科学技术奖自然科学类一等奖。
引用本文:
孙佳南,许辉. 热激发延迟荧光分子的受体基团研究进展[J]. 材料导报, 2020, 34(1): 1135-1145.
SUN Jianan,XU Hui. Research Progress on Acceptor Groups of Thermally Activated Delayed Fluorescent Molecules. Materials Reports, 2020, 34(1): 1135-1145.
1 Tang C W, VanSlyke S A, Applied Physics Letters, 1987, 51, 913. 2 Muller C D, Falcou A, Reckefuss N, et al. Nature, 2003, 421, 829. 3 Baldo M A, O'Brien D F, You Y, et al. Nature, 1998, 395, 151. 4 Endo A, Ogasawara M, Takahashi A, et al. Advanced Materials, 2009, 21, 4802. 5 Uoyama H, Goushi K, Shizu K, et al. Nature, 2012, 492, 234. 6 Tao Y, Yuan K, Chen T, et al. Advanced Materials, 2014, 26, 7931. 7 Yang Z, Mao Z, Xie Z, et al. Chemical Society Reviews, 2017, 46, 915. 8 Cai X, Su S J. Advanced Functional Materials, 2018, 28, 1802558. 9 Wolf M W, Legg K D, Brown R E, et al. Journal of the American Chemical Society, 1975, 97, 4490. 10 Jiang K, Wang Y, Cai C, et al. Chemistry of Materials, 2017, 29, 4866. 11 Lee S Y, Adachi C, Yasuda T. Advanced Materials, 2016, 28, 4626. 12 Duan C, Li J, Han C, et al. Chemistry of Materials 2016, 28, 5667. 13 Liang Q, Han C, Duan C, et al. Advanced Optical Materials, 2018, 6, 1800020. 14 Li C, Duan C, Han C, et al. Advanced Materials, 2018, 30, 1804228. 15 Gao F, Du R, Han C, et al. Chemical Science, 2019, 10, 5556. 16 Sun J W, Lee J H, Moon C K, et al. Advanced Materials, 2014, 26, 5684. 17 Cho Y J, Chin B D, Jeon S K, et al. Advanced Functional Materials, 2015, 25, 6786. 18 Byeon S Y, Kim J H, Lee J Y. ACS Applied Materials & Interfaces, 2017, 9, 13339. 19 Park I S, Lee S Y, Adachi C, et al. Advanced Functional Materials, 2016, 26, 1813. 20 Cheng Z, Li Z, Xu Y, et al. ACS Applied Materials & Interfaces, 2019, 11, 28096. 21 Saigo M, Miyata K, Tanaka S, et al. The Journal of Physical Chemistry Letters, 2019, 10, 2475. 22 Lee H L, Lee K H, Lee J Y, et al. Journal of Materials Chemistry C, 2019, 7, 6465. 23 Jayakumar J, Wu T L, Huang M J, et al. ACS Applied Materials & Interfaces, 2019, 11, 21042. 24 Vigante B, Leitonas K, Volyniuk D, et al. Chemistry-A European Journal, 2019, 25, 3325. 25 Sun J W, Baek J Y, Kim K H, et al. Chemistry of Materials, 2015, 27, 6675. 26 Lee D R, Kim M, Jeon S K, et al. Advanced Materials, 2015, 27, 5861. 27 Kim M, Choi J M, Lee J Y. Chemical Communications, 2016, 52, 10032. 28 Kang Y J, Lee J Y. Dyes and Pigments, 2017, 138, 176. 29 Cui L S, Nomura H, Geng Y, et al. Angewandte Chemie International Edition, 2017, 56, 1571. 30 Woo S J, Kim Y, Kim M J, et al. Chemistry of Materials, 2018, 30(3), 857. 31 Woo S J, Kim Y, Kwon S K, et al. ACS Applied Materials & Interfaces, 2019, 11, 7199. 32 Kang Y J, Yun J H, Han S H, et al. Journal of Materials Chemistry C, 2019, 7, 4573. 33 Yu J G, Han S H, Lee H L, et al. Journal of Materials Chemistry C, 2019,7, 2919. 34 Li W, Li B, Cai X, et al. Angewandte Chemie International Edition, 2019, 58, 11301. 35 Braveenth R, Lee H, Kim S, et al. Journal of Materials Chemistry C, 2019, 7, 7672. 36 Wang Q, Zhang Y X, Yuan Y, et al. ACS Applied Materials & Interfaces, 2019, 11, 2197. 37 Cai X, Gao B, Li X L, et al. Advanced Functional Materials, 2016, 26, 8042. 38 Rajamalli P, Senthilkumar N, Huang P Y, et al. Journal of the American Chemical Society, 2017, 139, 10948. 39 Guo J, Li X L, Nie H, et al. Advanced Functional Materials, 2017, 27, 1606458. 40 Liang J, Li C, Zhuang X, et al. Advanced Functional Materials, 2018, 28, 1707002. 41 Cai X, Chen D, Gao K, et al. Advanced Functional Materials, 2018, 28, 1704927. 42 Liu H, Zeng J, Guo J, et al. Angewandte Chemie International Edition, 2018,57, 9290. 43 Thangaraji V, Rajamalli P, Jayakumar J, et al. ACS Applied Materials & Interfaces, 2019, 11, 17128.
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2020, Vol. 34 
