Facile morphological control of fluorescent nano/microstructures via self-assembly and phase separation of trigonal azobenzenes showing aggregation-induced emission enhancement in polymer matrices

2015 ◽  
Vol 3 (16) ◽  
pp. 4093-4098 ◽  
Author(s):  
Mina Han ◽  
Yukikazu Takeoka ◽  
Takahiro Seki
Keyword(s):  
Phase Separation ◽  
Self Assembly ◽  
Polymer Matrices ◽  
Morphological Control ◽  
Aggregation Induced Emission ◽  
Emission Enhancement

We report a facile strategy for constructing diverse nano/microstructured morphologies via self-assembly and phase separation of trigonal azobenzene chromophores showing AIEE in polymer matrices.

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.

scholarly journals Chiral Pentaphenylpyrrole Derivatives with Aggregation-Induced Emission Enhancement and Aggregation Induced Circular Dichroism and Their Helical Self-assembly

2021 ◽  
Vol 267 ◽  
pp. 02012
Author(s):  
Yuanyuan Wang ◽  
Longlong Zhang ◽  
Junge Zhi
Keyword(s):  
Circular Dichroism ◽  
Self Assembly ◽  
Nano Particles ◽  
Mixed Solution ◽  
Induced Circular Dichroism ◽  
Aggregation Induced Emission ◽  
Water Fraction ◽  
Chiral Compounds ◽  
Emission Enhancement ◽  
Circular Dichroïsm

A pair of enantiomers (S)-P5PdiAM and (R)-P5PdiAM containing two chiral substituents, and their raceme rac-P5PdiAM were synthesized by introducing (R)-/(S)- or racemic 1-phenylethylamine into 1-biphenyl-2,3,4,5-tetraphenylpyrrole. The target compounds all show weak aggregation-induced emission enhancement (AIEE) characteristics in the DMSO/H2O mixed system, indicating that the introduction of chirality hardly affect the photophysical properties of the compound. In addition, the chiral compounds (S)-P5PdiAM and (R)-P5PdiAM show strong circular dichroism (CD) signals in THF/H2O mixed solution with a water fraction of 70%, that is, they exhibit aggregation-induced circular dichroism characteristics (AICD). Because the aggregates of (S)-P5PdiAM and (R)-P5PdiAM emit weakly, there is no circularly polarized luminescence (CPL) signals upon aggregation. The chiral compounds (S)-P5PdiAM and (R)-P5PdiAM can self-assemble to form helical nanofibers in a THF/H2O mixture with a water fraction of 70%, while the racemic rac-P5PdiAM assembled to form nano-particles, indicating that chiral substituents have a great influence on the self-assembly and the morphologies of the nano-aggregates.

scholarly journals Two-step Anti-cooperative Self-assembly Process into Defined π-Stacked Dye Oligomers: Insights into Aggregation-induced Enhanced Emission

2021 ◽  
Author(s):  
Yvonne Vonhausen ◽  
Andreas Lohr ◽  
Matthias Stolte ◽  
Frank Wuerthner
Keyword(s):  
Self Assembly ◽  
Fluorescence Properties ◽  
Assembly Process ◽  
Aggregation Induced Emission ◽  
Packing Structure ◽  
Emission Enhancement

Aggregation-induced emission enhancement (AIEE) phenomena received great popularity during the last decade but in most cases insights into the packing structure – fluorescence properties remained scarce. Here, an almost non-fluorescent...

Aggregation-induced emission enhancement and aggregation-induced circular dichroism of chiral pentaphenylpyrrole derivatives and their helical self-assembly

2017 ◽  
Vol 41 (17) ◽  
pp. 8877-8884 ◽  
Author(s):  
Longlong Zhang ◽  
Kaichang Liang ◽  
Lichao Dong ◽  
Peipei Yang ◽  
Yuanyuan Li ◽  
...  
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 pentaphenylpyrrole derivatives possess AICD and circularly polarized luminescence features with self-assembling to regular nanofibers.

Self-Assembly of Propeller-Shaped Amphiphilic Molecules: Control over the Supramolecular Morphology and Photoproperties of Their Aggregates

Soft Matter ◽  
2021 ◽  
Author(s):  
Nan Ye ◽  
Yi-rong Pei ◽  
Qingqing Han ◽  
Myongsoo Lee ◽  
Long Yi Jin
Keyword(s):  
Self Assembly ◽  
Morphological Control ◽  
Aggregation Induced Emission ◽  
Amphiphilic Molecules ◽  
Fluorescent Materials

The aggregation-induced emission (AIE) effect is an important feature for luminescence studies, which can offer a broader range of applications for fluorescent materials. Herein, we report the morphological control and...

Self-assembly of a white-light emitting polymer with aggregation induced emission enhancement using simplified derivatives of tetraphenylethylene

2016 ◽  
Vol 4 (34) ◽  
pp. 8027-8040 ◽  
Author(s):  
Ezhakudiyan Ravindran ◽  
Elumalai Varathan ◽  
Venkatesan Subramanian ◽  
Narayanasastri Somanathan
Keyword(s):  
White Light ◽  
Self Assembly ◽  
Light Emission ◽  
High Quantum Yield ◽  
Light Emitting ◽  
Aggregation Induced Emission ◽  
Emission Enhancement ◽  
Bright White Light ◽  
J Aggregates ◽  
Derivatives Of

Novel luminogen based copolymers exhibit bright white light emission with high quantum yield through aggregation induced emission enhancement due to J-aggregates.

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