Supramolecular Structure-Dependent Thermally-Activated Delayed Fluorescence (TADF) Properties of Organic Polymorphs
文献类型：期刊论文
| 作者 | Zhang, Yuewei1; Ma, Huili2; Wang, Shipan1; Li, Zhiqiang1; Ye, Kaiqi1; Zhang, Jingying1; Liu, Yu1; Peng, Qian3; Wang, Yue1 |
| 刊名 | JOURNAL OF PHYSICAL CHEMISTRY C
 |
| 出版日期 | 2016-09-08 |
| 卷号 | 120期号:35页码:19759-19767 |
| 英文摘要 | The increasing demand for high-performance organic light-emitting devices (OLEDs) based on thermally-activated delayed fluorescence (TADF) principle urgently requires to establish an efficient preparation strategy of high-performance TADF materials. Although considerable progress has been made in molecular design approaches for TADF materials it stil remains an unaddressed issue how molecular aggregated states or supramolecular structures determine the TADF property of organic solids. Hernia, we present an organic molecule 3-(10H-phenoxazin-10-yl)-9H-xanthen-9-one (3-PXZ-XO) with TADF and polymorph characteristics. Three kinds of 3-PXZ-XO based crystals A, B, and C with different TADF properties were obtained. The three crystals display obviously different emission maxima (lambda(em,max): 535 rim for A, 555 nm for B, and 576 nm for C), photo-luminescence (PL) quantum yields (Phi: 51% for A, 28% for B, and 32% for C), and delayed lifetimes of excited states (tau(TADF): 914 ns for A, 774 ns for B, and 994 ns for C). Single-crystal X-ray, diffraction analyses, revealed that in A, B, and C there are different intermolecular pi center dot center dot center dot pi stacking interaction modes. between the adjacent donor planes or acceptor planes. The different TADF properties of the three polymorphs are mainly attributed to their different supramolecular structures. Appropriate donor...donor and acceptor...acceptor stacking interactions inducing aggregation structures can strongly enhance TADF property of organic solids. |
| 收录类别 | SCI |
| 语种 | 英语 |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/35247]  |
| 专题 | 化学研究所_有机固体实验室 |
| 作者单位 | 1.Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China 2.Tsinghua Univ, Dept Chem, Key Lab Organ OptoElect & Mol Engn, Beijing 100084, Peoples R China 3.Chinese Acad Sci, Inst Chem, Key Lab Organ Solids, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Yuewei,Ma, Huili,Wang, Shipan,et al. Supramolecular Structure-Dependent Thermally-Activated Delayed Fluorescence (TADF) Properties of Organic Polymorphs[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016,120(35):19759-19767. |
| APA | Zhang, Yuewei.,Ma, Huili.,Wang, Shipan.,Li, Zhiqiang.,Ye, Kaiqi.,...&Wang, Yue.(2016).Supramolecular Structure-Dependent Thermally-Activated Delayed Fluorescence (TADF) Properties of Organic Polymorphs.JOURNAL OF PHYSICAL CHEMISTRY C,120(35),19759-19767. |
| MLA | Zhang, Yuewei,et al."Supramolecular Structure-Dependent Thermally-Activated Delayed Fluorescence (TADF) Properties of Organic Polymorphs".JOURNAL OF PHYSICAL CHEMISTRY C 120.35(2016):19759-19767. |
入库方式： OAI收割
来源：化学研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。