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High Electron Mobility Hot-Exciton Induced Delayed Fluorescent Organic Semiconductors |
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| Authors: | Y. Zhang Dr. C. Gao P. Wang Dr. Y. Liu Dr. Z. Liu Dr. W. Xie H. Xu Prof. Dr. Y. Dang Dr. D. Liu Prof. Dr. Z. Ren Prof. Dr. S. Yan Prof. Dr. Z. Wang Prof. Dr. W. Hu Prof. Dr. H. Dong |
| Affiliation: | 1. National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China Department of Chemistry, University of Chinese Academy of Sciences, Beijing, 100049 China These authors contributed equally to this work.;2. National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China These authors contributed equally to this work.;3. Department Key Laboratory of Rubber-Plastics, Ministry of Education/ Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao, 266042 China;4. College of Materials Science and Engineering, Fuzhou University, Fuzhou, 350108 China;5. Key Laboratory of Advanced Energy Materials Chemistry (Ministry of Education) Renewable Energy Conversion and Storage Center, College of Chemistry, Nankai University, Tianjin, 300071 China;6. Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072 China;7. National Laboratory for Molecular Sciences, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190 China;8. State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029 China;9. Department Key Laboratory of Rubber-Plastics, Ministry of Education/ Shandong Provincial Key Laboratory of Rubber-plastics, Qingdao University of Science & Technology, Qingdao, 266042 China State Key Laboratory of Chemical Resource Engineering, College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing, 100029 China;10. Department of Chemistry, Tsinghua University, Beijing, 100084 China;11. Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University & Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072 China Joint School of National University of Singapore and Tianjin University, International Campus of Tianjin University, Binhai New City, 350207 China |
| Abstract: | The development of high mobility emissive organic semiconductors is of great significance for the fabrication of miniaturized optoelectronic devices, such as organic light emitting transistors. However, great challenge exists in designing key materials, especially those who integrates triplet exciton utilization ability. Herein, dinaphthylanthracene diimides (DNADIs), with 2,6-extended anthracene donor, and 3′- or 4′-substituted naphthalene monoimide acceptors were designed and synthesized. By introducing acceptor-donor-acceptor structure, both materials show high electron mobility. Moreover, by fine-tuning of substitution sites, good integration with high solid state photoluminescence quantum yield of 26 %, high electron mobility of 0.02 cm2 V−1 s−1, and the feature of hot-exciton induced delayed fluorescence were obtained in 4′-DNADI. This work opens a new avenue for developing high electron mobility emissive organic semiconductors with efficient utilization of triplet excitons. |
| Keywords: | Anthracene Hot-Exciton Induced Delayed Fluorescence Naphthalene Monoimide Organic Electronics Semiconductor |