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| J-aggregation enhanced thermally activated delayed fluorescence for amplified spontaneous emission | |
| Zhu, Jinlong1; Liao, Qing1; Huang, Han2; Fu, Liyuan1; Liu, Meihui1; Gu, Chunling3; Fu, Hongbing1 | |
| 2022-01-19 | |
| Source Publication | CELL REPORTS PHYSICAL SCIENCE
 |
| Volume | 3Issue:1Pages:12 |
| Abstract | Modulation of excited-state energy-level structures through controlled molecular stacking arrangement provides an effective strategy for tuning fluorescence and thermally activated delayed fluorescence (TADF) amplified spontaneous emission (ASE) but remains a critical challenge. Herein, we report the regulation of fluorescence and TADF ASE in organic crystalline polymorphs by controlling the excited-state dynamics through aggregate effects. Experimental and theoretical studies show that green crystals emit green fluorescence ASE, while red crystals emit red TADF ASE because a higher degree of J-aggregation in red crystals significantly results in a substantial decrease of energy gaps between singlet and triplet to 0.24 eV for the realization of a reverse intersystem crossing process. Our results suggest that molecular packing presents a powerful approach to tailor radiative channels that is fundamentally important for tuning fluorescence and TADF ASE in pure organic crystals. |
| DOI | 10.1016/j.xcrp.2021.100686 |
| Language | 英语 |
| WOS Keyword | LIGHT-EMITTING-DIODES ; CRYSTAL-STRUCTURES ; MOBILITY ; ENERGY ; ELECTROLUMINESCENCE ; PREDICTION ; MOLECULES ; COUPLINGS ; STRATEGY ; LASERS |
| Funding Project | National Key R&D Program of China[2018YFA0704805] ; National Key R&D Program of China[2018YFA0704802] ; National Key R&D Program of China[2017YFA0204503] ; National Natural Science Foundation of China[22150005] ; National Natural Science Foundation of China[22090022] ; National Natural Science Foundation of China[21833005] ; National Natural Science Foundation of China[21873065] ; National Natural Science Foundation of China[21790364] ; Natural Science Foundation of Beijing[KZ202110028043] ; Beijing Talents Project[2019A23] ; Open Fund of the State Key Laboratory of Integrated Optoelectronics[IOSKL2019KF01] ; Capacity Building for Sci-Tech Innovation-Fundamental Scientific Research Funds, Beijing Advanced Innovation Center for Imaging Theory and Technology |
| WOS Research Area | Chemistry ; Energy & Fuels ; Materials Science ; Physics |
| WOS Subject | Chemistry, Multidisciplinary ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Multidisciplinary |
| Funding Organization | National Key R&D Program of China ; National Natural Science Foundation of China ; Natural Science Foundation of Beijing ; Beijing Talents Project ; Open Fund of the State Key Laboratory of Integrated Optoelectronics ; Capacity Building for Sci-Tech Innovation-Fundamental Scientific Research Funds, Beijing Advanced Innovation Center for Imaging Theory and Technology |
| WOS ID | WOS:000745659500006 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/51852 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Liao, Qing; Fu, Hongbing |
| Affiliation | 1.Capital Normal Univ, Dept Chem, Beijing Key Lab Opt Mat & Photon Devices, Beijing 100048, Peoples R China 2.Tianjin Univ, Sch Chem Engn & Technol, Tianjin Key Lab Mol Optoelect Sci, Tianjin 300072, Peoples R China 3.Chinese Acad Sci, Inst Proc Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhu, Jinlong,Liao, Qing,Huang, Han,et al. J-aggregation enhanced thermally activated delayed fluorescence for amplified spontaneous emission[J]. CELL REPORTS PHYSICAL SCIENCE,2022,3(1):12. |
| APA | Zhu, Jinlong.,Liao, Qing.,Huang, Han.,Fu, Liyuan.,Liu, Meihui.,...&Fu, Hongbing.(2022).J-aggregation enhanced thermally activated delayed fluorescence for amplified spontaneous emission.CELL REPORTS PHYSICAL SCIENCE,3(1),12. |
| MLA | Zhu, Jinlong,et al."J-aggregation enhanced thermally activated delayed fluorescence for amplified spontaneous emission".CELL REPORTS PHYSICAL SCIENCE 3.1(2022):12. |
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