High-Efficiency Circularly Polarized Luminescence from Chiral Luminescent Liquid Crystalline Polymers with Aggregation-Induced Emission Properties

2020 ◽  
Vol 53 (22) ◽  
pp. 9758-9768
Author(s):  
Zhi-Wang Luo ◽  
Lei Tao ◽  
Cheng-Long Zhong ◽  
Zheng-Xing Li ◽  
Kai Lan ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
High Efficiency ◽  
Liquid Crystalline Polymers ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Crystalline Polymers ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

scholarly journals Chirality-activated mechanoluminescence from aggregation-induced emission enantiomers with high contrast mechanochromism and force-induced delayed fluorescence

2019 ◽  
Vol 3 (9) ◽  
pp. 1800-1806 ◽  
Author(s):  
Yitong Chen ◽  
Chao Xu ◽  
Bingjia Xu ◽  
Zhu Mao ◽  
Jian-An Li ◽  
...  
Keyword(s):  
Delayed Fluorescence ◽  
High Contrast ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

A pair of AIE enantiomers exhibit chirality-activated mechanoluminescence and circularly polarized luminescence, as well as force-induced multiple-variations in emission properties.

Novel chiral aggregation induced emission molecules: self-assembly, circularly polarized luminescence and copper(ii) ion detection

2018 ◽  
Vol 2 (10) ◽  
pp. 1884-1892 ◽  
Author(s):  
Guangxi Huang ◽  
Rongsen Wen ◽  
Zhiming Wang ◽  
Bing Shi Li ◽  
Ben Zhong Tang
Keyword(s):  
Self Assembly ◽  
Fluorescent Chemosensor ◽  
Chiral Molecules ◽  
Ion Detection ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

Two novel chiral molecules 1 and 2 were designed and synthesized. 1 displayed evident CPL activity, whereas 2 served as a highly selective and sensitive “turn-off” fluorescent chemosensor for Cu2+.

scholarly journals Preferential Circularly Polarized Luminescence from a Nano-Segregated Liquid Crystalline Phase Using a Polymerized Twisted Nematic Platform

Polymers ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 2529
Author(s):  
Jae-Jin Lee ◽  
Suk-Won Choi
Keyword(s):  
Molecular Weight ◽  
Liquid Crystalline ◽  
Guest Molecule ◽  
Mixed System ◽  
Low Molecular Weight ◽  
Circularly Polarized ◽  
Molecular Systems ◽  
Circularly Polarized Luminescence ◽  
Twisted Nematic ◽  
Polarized Luminescence

In this study, a polymerized twisted nematic (TN) network was used as an extrinsic chiral platform to overcome the heterogeneity during spontaneous symmetry breaking in a mixed system comprising an achiral bent-core molecule and rod-like mesogen. The TN platform was prepared by photopolymerizing a reactive mesogen dispersed in a low molecular weight liquid crystal with TN orientation. The use of TN orientation to correct the degeneracy in bent-core molecular systems has been previously reported; however, to the best of our knowledge, this is the first study that uses an extrinsic chiral platform of a polymerized TN network. The heterogeneity in the nano-segregated phase of the achiral mixture was suppressed using the extrinsic TN platform with a twisted angle θ of ≥ |±30°|. When an achiral mixture doped with a luminescent guest molecule was refilled into the extrinsic chiral platform, preferential deracemization with one-handedness occurred, corresponding to the handedness of the TN platform. Therefore, circularly polarized luminescence with a preferential handedness can be achieved using this extrinsic chiral platform.

Circularly polarized luminescence from AIEgens

2020 ◽  
Vol 8 (10) ◽  
pp. 3284-3301 ◽  
Author(s):  
Fengyan Song ◽  
Zheng Zhao ◽  
Zhiyang Liu ◽  
Jacky W. Y. Lam ◽  
Ben Zhong Tang
Keyword(s):  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Recent Advances ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence

This work systematically summarizes recent advances in circularly polarized luminescence (CPL) based on aggregation-induced emission luminogens (AIEgens).

The synthesis of chiral triphenylpyrrole derivatives and their aggregation-induced emission enhancement, aggregation-induced circular dichroism and helical self-assembly

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23420-23427 ◽  
Author(s):  
Kaichang Liang ◽  
Lichao Dong ◽  
Na Jin ◽  
Didi Chen ◽  
Xiao Feng ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Self Assembly ◽  
Induced Circular Dichroism ◽  
Circularly Polarized ◽  
Aggregation Induced Emission ◽  
Self Assembling ◽  
Emission Enhancement ◽  
Circularly Polarized Luminescence ◽  
Polarized Luminescence ◽  
Circular Dichroïsm

AIEE-active chiral triphenylpyrrole derivatives possess aggregation-induced circular dichroism and circularly polarized luminescence features with self-assembling helical nanofibers.

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