发光
蒽
手性(物理)
芘
超分子化学
激发态
光化学
荧光
超分子手性
材料科学
化学
化学物理
结晶学
光电子学
有机化学
晶体结构
光学
物理
原子物理学
手征对称破缺
量子力学
Nambu–Jona Lasinio模型
夸克
作者
Haowen Zhang,Jianlei Han,Xue Jin,Pengfei Duan
标识
DOI:10.1002/ange.202014891
摘要
Abstract A major trade‐off in the field of circularly polarized luminescence (CPL) of pure organic materials is that the large luminescence dissymmetry factor ( g lum ) usually gives rise to the suppression of luminescence efficiency ( Φ PL ). Here, a supramolecular self‐assembled system, driven by arene–perfluoroarene (AP) interactions of chiral polycyclic aromatic hydrocarbons (PAHs) and octafluoronaphthalene ( OFN ), is reported to provide a solution to this problem. Two kinds of chiral PAHs based on pyrene and anthracene could co‐assemble with OFN in hybrid solvents to form long‐range‐ordered AP assemblies. The detailed process of AP interaction driving self‐assembly was verified by morphological measurements and fluorescence spectra. The AP assemblies exhibited chirality amplification not only in the excited state but also in the ground state. In addition, the AP assemblies showed an enhanced luminescence efficiency compared with the individual chiral PAHs due to the energy‐barrier effect of OFN . The present strategy based on AP interactions could be applied to boost the development of highly efficient CPL‐active materials.
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