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Generating circularly polarized luminescence from clusterization‐triggered emission using solid phase molecular self-assembly
Nature Communications ( IF 16.6 ) Pub Date : 2021-09-17 , DOI: 10.1038/s41467-021-25789-9
Peilong Liao 1 , Shihao Zang 1 , Tongyue Wu 1 , Hongjun Jin 1 , Wenkai Wang 1 , Jianbin Huang 1 , Ben Zhong Tang 2 , Yun Yan 1
Affiliation  

Purely-organic clusterization‐triggered emission (CTE) has displayed promising abilities in bioimaging, chemical sensing, and multicolor luminescence. However, it remains absent in the field of circularly polarized luminescence (CPL) due to the difficulties in well-aligning the nonconventional luminogens. We report a case of CPL generated with CTE using the solid phase molecular self-assembly (SPMSA) of poly-L-lysine (PLL) and oleate ion (OL), that is, the macroscopic CPL supramolecular film self-assembled by the electrostatic complex of PLL/OL under mechanical pressure. Well-defined interface charge distribution, given by lamellar mesophases of OL ions, forces the PLL chains to fold regularly as a requirement of optimal electrostatic interactions. Further facilitated by hydrogen bonding, the through-space conjugation (TSC) of orderly aligned electron-rich O and N atoms leads to CTE-based CPL, which is capable of transferring energy to an acceptor via a Förster resonance energy transfer (FRET) process, making it possible to develop environmentally friendly and economic CPL from sustainable and renewable materials.



中文翻译:

使用固相分子自组装从团簇触发发射产生圆偏振发光

纯有机团簇触发发射(CTE)在生物成像、化学传感和多色发光方面显示出有前途的能力。然而,由于很难很好地对准非常规发光体,它在圆偏振发光 (CPL) 领域仍然缺席。我们报告了一个使用聚赖氨酸(PLL)和油酸离子(OL)的固相分子自组装(SPMSA)通过CTE生成的CPL案例,即通过静电自组装的宏观CPL超分子膜机械压力下 PLL/OL 的复合体。由 OL 离子的层状中间相给出的明确定义的界面电荷分布迫使 PLL 链定期折叠作为最佳静电相互作用的要求。通过氢键进一步促进,

更新日期:2021-09-17
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