De Novo Design of Excited-State Intramolecular Proton Transfer Emitters via a Thermally Activated Delayed Fluorescence Channel
文献类型：期刊论文
| 作者 | Wu, Kailong3,4; Zhang, Tao2; Wang, Zian4; Wang, Lian1; Zhan, Lisi4; Gong, Shaolong4; Zhong, Cheng4; Lu, Zheng-Hong2; Zhang, Song1; Yang, Chuluo3,4 |
| 刊名 | JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
 |
| 出版日期 | 2018-07-18 |
| 卷号 | 140期号:28页码:8877-8886 |
| ISSN号 | 0002-7863 |
| DOI | 10.1021/jacs.8b04795 |
| 英文摘要 | Developing excited-state intramolecular proton transfer (ESIPT) emitters with high photoluminescence quantum yields (Phi(PL)s) and long fluorescence lifetimes in solid state remains a formidable challenge. In this study, we integrated the molecular design tactics of thermally activated delayed fluorescence (TADF) into ESIPT molecules with the goals of improving their Phi(PL)s and increasing their fluorescence lifetimes. Two proof-of-concept molecules, PXZPDO and DMACP-DO, were developed by adopting symmetric D-pi-A-pi-D molecular architectures (where D and A represent donors and acceptors, respectively) featuring electron donating phenoxazine or a 9,9-dimethyl-9,10-dihydroacridine moiety, an ESIPT core beta-diketone, and phenylene pi-bridges. Both molecules exhibited sole enol-type forms stabilized by intramolecular hydrogen bonds and exhibited a unique and dynamic ESIPT character that was verified by transient absorption analyses. Endowed with distinct TADF features, PXZPDO and DMACPDO showed high Phi(PL)s of 68% and 86% in the film state, coupled with notable delayed fluorescence lifetimes of 1.33 and 1.94 mu s, respectively. Employing these ESIPT emitters successfully achieved maximum external quantum efficiencies (n(ext)s) of 18.8% and 23.9% for yellow and green organic light-emitting diodes (OLEDs), respectively, which represent the state-of-the-art device performances for ESIPT emitters. This study not only opens a new avenue for designing efficient ESIPT emitters with high Phi(PL)s and long fluorescence lifetimes in solid state but also unlocks the huge potential of ESIPT emitters in realizing high-efficiency OLEDs. |
| WOS关键词 | LIGHT-EMITTING-DIODES ; EXTERNAL QUANTUM EFFICIENCY ; AGGREGATION-INDUCED EMISSION ; CHARGE-TRANSFER ; RADIATIONLESS PROCESSES ; POWER EFFICIENCY ; ROLL-OFF ; BLUE ; DEVICES ; OLEDS |
| 资助项目 | National Natural Science Foundation of China[51573141] ; National Natural Science Foundation of China[91433201] ; National Natural Science Foundation of China[11674355] ; National Key R&D Program of China[2016YFB0401002] ; National Basic Research Program of China[2015CB655002] ; Shenzhen Peacock Plan[KQTD20170330110107046] ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province[2017CFA033] |
| WOS研究方向 | Chemistry |
| 语种 | 英语 |
| WOS记录号 | WOS:000439532000037 |
| 出版者 | AMER CHEMICAL SOC |
| 资助机构 | National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Basic Research Program of China ; National Basic Research Program of China ; Shenzhen Peacock Plan ; Shenzhen Peacock Plan ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Basic Research Program of China ; National Basic Research Program of China ; Shenzhen Peacock Plan ; Shenzhen Peacock Plan ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Basic Research Program of China ; National Basic Research Program of China ; Shenzhen Peacock Plan ; Shenzhen Peacock Plan ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Key R&D Program of China ; National Key R&D Program of China ; National Basic Research Program of China ; National Basic Research Program of China ; Shenzhen Peacock Plan ; Shenzhen Peacock Plan ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province ; Natural Science Foundation for Distinguished Young Scholars of Hubei Province |
| 源URL | [http://ir.wipm.ac.cn/handle/112942/21346]  |
| 专题 | 中国科学院武汉物理与数学研究所 |
| 通讯作者 | Gong, Shaolong; Lu, Zheng-Hong; Zhang, Song; Yang, Chuluo |
| 作者单位 | 1.Chinese Acad Sci, Wuhan Inst Phys & Math, State Key Lab Magnet Resonance & Atom & Mol Phys, Wuhan 430071, Hubei, Peoples R China 2.Yunnan Univ, Dept Phys, Yunnan Key Lab Micro Nano Mat & Technol, Kunming 650091, Yunnan, Peoples R China 3.Shenzhen Univ, Coll Mat Sci & Engn, Shenzhen Key Lab Polymer Sci & Technol, Shenzhen 518060, Peoples R China 4.Wuhan Univ, Hubei Key Lab Organ & Polymer Optoelect Mat, Dept Chem, Wuhan 430072, Hubei, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wu, Kailong,Zhang, Tao,Wang, Zian,et al. De Novo Design of Excited-State Intramolecular Proton Transfer Emitters via a Thermally Activated Delayed Fluorescence Channel[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,2018,140(28):8877-8886. |
| APA | Wu, Kailong.,Zhang, Tao.,Wang, Zian.,Wang, Lian.,Zhan, Lisi.,...&Yang, Chuluo.(2018).De Novo Design of Excited-State Intramolecular Proton Transfer Emitters via a Thermally Activated Delayed Fluorescence Channel.JOURNAL OF THE AMERICAN CHEMICAL SOCIETY,140(28),8877-8886. |
| MLA | Wu, Kailong,et al."De Novo Design of Excited-State Intramolecular Proton Transfer Emitters via a Thermally Activated Delayed Fluorescence Channel".JOURNAL OF THE AMERICAN CHEMICAL SOCIETY 140.28(2018):8877-8886. |
入库方式： OAI收割
来源：武汉物理与数学研究所
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