文献类型：期刊文献

英文题名：Reversible Inversion of Circularly Polarized Luminescence in a Coassembly Supramolecular Structure with Achiral Sulforhodamine B Dyes

作者：Xu, Hui[1];Ma, Chang-Shun[1];Yu, Cheng-Yuan[1];Tong, Fei[1];Qu, Da-Hui[1]

机构：[1]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Frontiers Sci Ctr Materiobiol & Dynam Chem, Sch Chem & Mol Engn,Key Lab Adv Mat & Joint Int Re, Shanghai 200237, Peoples R China

年份：2023

卷号：15

期号：21

起止页码：25201

外文期刊名：ACS APPLIED MATERIALS & INTERFACES

收录：;EI(收录号：20231513884713);WOS:【SCI-EXPANDED(收录号:WOS:000967755800001)】；

基金：ACKNOWLEDGMENTS This work was financially supported by the National Natural Science Foundation of China (Grants 22025503, 22105071, and 22220102004) , Shanghai Municipal Science and Technology Major Project (Grant 2018SHZDZX03) , Fundamental Research Funds for the Central Universities, the Programme of Introducing Talents of Discipline to Universities (Grant B16017) , Shanghai Sailing Program (21YF1409200) , Science and Technology Commission of Shanghai Municipality (21JC1401700 and 22ZR1417100) , and Starry Night Science Fund of Zhejiang University Shanghai Institute for Advanced Study (SN-ZJU-SIAS-006) . The authors also thank the Research Center of Analysis and Test of East China University of Science and Technology for help with the material characterization.

语种：英文

外文关键词：circularly polarized luminescence; CPL inversion; coassembly; supramolecules; achiral dyes

摘要：The dynamic control of circularly polarized luminescence (CPL) has far-reaching significance in optoelectronics, information storage, and data encryption. Herein, we reported the reversible inversion of CPL in a coassembly supramolecular system consisting of chiral molecules L4, which contain two positively charged viologen units, and achiral ionic surfactant sodium dodecyl sulfate (SDS) by introducing achiral sulforhodamine B (SRB) dye molecules. The chirality of CPL in the coassemblies can be efficiently regulated and inverted by simply adjusting the amount of SRB. A series of experimental characterization, including optical spectroscopy, electron microscope, 1H NMR, and X-ray scattering measurements, suggested that SRB could coassemble with L4/SDS to establish a new stable L4/SDS/SRB supramolecular structure through electrostatic interactions. Moreover, the negative-sign CPL could revert to the positive-sign CPL if titanium dioxide (TiO2) nanoparticles were used to decompose SRB molecules. The evolution of the CPL inversion process could be cycled at least 5 times without a significant decline in CPL signals when SRB was refueled to the system. Our results provide a facile approach to dynamically regulating the handedness of CPL in a multiple-component supramolecular system via achiral species.