Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137687
Title: Structural engineering of luminogens with high emission efficiency both in solution and in the solid state
Authors: Wu, Hongwei
Chen, Zhao
Chi, Weijie
Bindra, Anivind Kaur
Gu, Long
Qian, Cheng
Wu, Bing
Yue, Bingbing
Liu, Guofeng
Yang, Guangbao
Zhu, Liangliang
Zhao, Yanli
Keywords: Science::Chemistry
Issue Date: 2019
Source: Wu, H., Chen, Z., Chi, W., Bindra, A. K., Gu, L., Qian, C., ... Zhao, Y. (2019). Structural engineering of luminogens with high emission efficiency both in solution and in the solid state. Angewandte Chemie International Edition, 58(33), 11419-11423. doi:10.1002/anie.201906507
Journal: Angewandte Chemie International Edition
Abstract: Developing molecules with high emission efficiency both in solution and the solid state is still a great challenge, since most organic luminogens are either aggregation-caused quenching or aggregation-induced emission molecules. This dilemma was overcome by integrating planar and distorted structures with long alkyl side chains to achieve DApAD type emitters. A linear diphenyl–diacetylene core and the charge transfer effect ensure considerable planarity of these molecules in the excited state, allowing strong emission in dilute solution (quantum yield up to 98.2%). On the other hand, intermolecular interactions of two distorted cyanostilbene units restrict molecular vibration and rotation, and long alkyl chains reduce the quenching effect of the p–p stacking to the excimer, eventually leading to strong emission in the solid state (quantum yield up to 60.7%).
URI: https://hdl.handle.net/10356/137687
ISSN: 1433-7851
DOI: 10.1002/anie.201906507
Rights: This is the peer reviewed version of the following article: Wu, H., Chen, Z., Chi, W., Bindra, A. K., Gu, L., Qian, C., ... Zhao, Y. (2019). Structural engineering of luminogens with high emission efficiency both in solution and in the solid state. Angewandte Chemie International Edition, 58(33), 11419-11423. doi:10.1002/anie.201906507, which has been published in final form at 10.1002/anie.201906507. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SPMS Journal Articles

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