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Title: Reducing aggregation caused quenching effect through co-assembly of PAH chromophores and molecular barriers
Authors: Huang, Yinjuan
Xing, Jie
Gong, Qiuyu
Chen, Li-Chuan
Liu, Guangfeng
Yao, Changjiang
Wang, Zongrui
Zhang, Hao-Li
Chen, Zhong
Zhang, Qichun
Keywords: DRNTU::Engineering::Materials
Molecular Self-assembly
Issue Date: 2019
Source: Huang, Y., Xing, J., Gong, Q., Chen, L.-C., Liu, G., Yao, C., . . . Zhang, Q. (2019). Reducing aggregation caused quenching effect through co-assembly of PAH chromophores and molecular barriers. Nature Communications, 10(1), 169-. doi:10.1038/s41467-018-08092-y
Series/Report no.: Nature Communications
Abstract: The features of well-conjugated and planar aromatic structures make π-conjugated luminescent materials suffer from aggregation caused quenching (ACQ) effect when used in solid or aggregated states, which greatly impedes their applications in optoelectronic devices and biological applications. Herein, we reduce the ACQ effect by demonstrating a facile and low cost method to co-assemble polycyclic aromatic hydrocarbon (PAH) chromophores and octafluoronaphthalene together. Significantly, the solid photoluminescence quantum yield (PLQYs) for the as-resulted four micro/nanococrystals are enhanced by 254%, 235%, 474 and 582%, respectively. Protection from hydrophilic polymer chains (P123 (PEO20-PPO70-PEO20)) endows the cocrystals with superb dispersibility in water. More importantly, profiting from the above-mentioned highly improved properties, nano-cocrystals present good biocompatibility and considerable cell imaging performance. This research provides a simple method to enhance the emission, biocompatibility and cellular permeability of common chromophores, which may open more avenues for the applications of originally non- or poor fluorescent PAHs.
DOI: 10.1038/s41467-018-08092-y
Rights: © 2019 The Author(s). This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit
Fulltext Permission: open
Fulltext Availability: With Fulltext
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