Supramolecular Assemblies for Second Order Nonlinear Optics Stabilized by Electrostatic Interaction

Electrostatic interactions are being used instead of covalent linkage to stabilize orientational order in novel materials for second order nonlinear optics. In complex supramolecular architectures, this simplifies the variation of chromophores or polymeric backbones. Other molecules can readily be inserted into the system in order to tune optical or thermodynamic properties without synthetic effort. Noncentrosymmetric ultrathin films consisting of highly ordered "active-passive" AB-Y-type multilayers of NLO active ionic amphiphiles and an ionic polymeric buffer material have been obtained by the Langmuir-Blodgett-Kuhn (LBK) technique. Combination with self-assembly by adsorption from solution is demonstrated.

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Control of the hierarchical self-assembly of polyoxometalate-based metallomacrocycles by redox trigger and solvent composition

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1808445115 ◽

2018 ◽

Vol 115 (36) ◽

pp. 8895-8900 ◽

Cited By ~ 20

Author(s):

Madeleine Piot ◽

Benjamin Abécassis ◽

Dalil Brouri ◽

Claire Troufflard ◽

Anna Proust ◽

...

Keyword(s):

Self Assembly ◽

Electrostatic Interactions ◽

Solvent Composition ◽

Emergent Properties ◽

Supramolecular Organization ◽

Solubility In Water ◽

Hierarchical Nanostructures ◽

Supramolecular Architectures ◽

Different Types ◽

Aggregation Modes Of

Discrete metallomacrocycles are attractive scaffolds for the formation of complex supramolecular architectures with emergent properties. We herein describe the formation of hierarchical nanostructures using preformed metallomacrocycles by coordination-driven self-assembly of a covalent organic–inorganic polyoxometalate (POM)-based hybrid. In this system, we take advantage of the presence of charged subunits (POM, metal linker, and counterions) within the metallomacrocycles, which drive their aggregation through intermolecular electrostatic interactions. We show that the solvent composition and the charge of the metal linker are key parameters that steer the supramolecular organization. Different types of hierarchical self-assemblies, zero-dimensional (0D) dense nanoparticles, and 1D worm-like nanoobjects, can be selectively formed owing to different aggregation modes of the metallomacrocycles. Finally, we report that the worm-like structures drastically enhance the solubility in water of a pyrene derivative and can act as molecular carriers.

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Langmuir-Blodgett films for second-order nonlinear optics

10.1117/12.50735 ◽

1991 ◽

Cited By ~ 9

Author(s):

Thomas L. Penner ◽

Nancy J. Armstrong ◽

Craig S. Willand ◽

Jay S. Schildkraut ◽

Douglas R. Robello

Keyword(s):

Nonlinear Optics ◽

Second Order ◽

Langmuir Blodgett ◽

Langmuir Blodgett Films

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Structural Properties of Oligomeric Langmuir−Blodgett Films for Second-Order Nonlinear Optics

Langmuir ◽

10.1021/la950717d ◽

1996 ◽

Vol 12 (9) ◽

pp. 2292-2297 ◽

Cited By ~ 2

Author(s):

A. Eaglesham ◽

T. Jaworek ◽

J. Cresswell ◽

S. Allen ◽

A. Burgess ◽

...

Keyword(s):

Nonlinear Optics ◽

Structural Properties ◽

Second Order ◽

Langmuir Blodgett ◽

Langmuir Blodgett Films

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High E-O Coefficient Polymers Based on a Chromophore Containing Isophorone Moiety for Second-Order Nonlinear Optics

MRS Proceedings ◽

10.1557/proc-488-151 ◽

1997 ◽

Vol 488 ◽

Cited By ~ 1

Author(s):

Jinghong Chen ◽

Jingsong Zhu ◽

Galina Todorova ◽

Mingqian He ◽

Larry R. Dalton ◽

...

Keyword(s):

Nonlinear Optics ◽

Electrostatic Interactions ◽

Polymer Network ◽

Temporal Stability ◽

Second Order ◽

Absorption Loss ◽

Intrinsic Absorption ◽

Electro Optic

AbstractA high -μβ chromophore APII utilizing isophorone as π-conjugation bridge was processed into both PMMA guest host and crosslinked (XL) polyurethane network with various loading densities. High electro -optic coefficients, r33 = 30 pm/V (in PMMA) and r33 = 32 pm/V (in polyurethane) at 1.06 μm were obtained. Alignment temporal stability ranged from 90 to 120°C for XL polymer network. There is virtually no intrinsic absorption loss at 1.3 μm (solution measurement). Also noteworthy is that high optimum loading densities of this chromophore are attainable in both cases without detectable chromophore aggregation due to intermolecular electrostatic interactions.

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Polar Glass Structure for Second-Order Nonlinear Optics Prepared by the Langmuir-Blodgett Method Using Amorphous Polymers with an Azo-Dye

Japanese Journal of Applied Physics ◽

10.1143/jjap.31.365 ◽

1992 ◽

Vol 31 (Part 1, No. 2A) ◽

pp. 365-368 ◽

Cited By ~ 7

Author(s):

Shuji Okada ◽

Hiro Matsuda ◽

Atsushi Masaki ◽

Hachiro Nakanishi ◽

Takashi Abe ◽

...

Keyword(s):

Nonlinear Optics ◽

Azo Dye ◽

Glass Structure ◽

Amorphous Polymers ◽

Second Order ◽

Langmuir Blodgett

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Langmuir-Blodgett alternate layer structures for second-order nonlinear optics

10.1117/12.22951 ◽

1990 ◽

Cited By ~ 3

Author(s):

John P. Cresswell ◽

John Tsibouklis ◽

Michael C. Petty ◽

W. James Feast ◽

Neil Carr ◽

...

Keyword(s):

Nonlinear Optics ◽

Second Order ◽

Langmuir Blodgett ◽

Layer Structures ◽

Alternate Layer

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In situ Time-Resolved Small-Angle X-ray Scattering Reveals the Formation Kinetics of Polyelectrolyte Complex Micelles

10.26434/chemrxiv.9876395.v1 ◽

2019 ◽

Author(s):

Hao Wu ◽

Jeffrey Ting ◽

Siqi Meng ◽

Matthew Tirrell

Keyword(s):

Small Angle ◽

Self Assembly ◽

Electrostatic Interactions ◽

Polyelectrolyte Complex ◽

Time Resolved ◽

X Ray ◽

X Ray Scattering ◽

Kinetics Of ◽

Ray Scattering

We have directly observed the <i>in situ</i> self-assembly kinetics of polyelectrolyte complex (PEC) micelles by synchrotron time-resolved small-angle X-ray scattering, equipped with a stopped-flow device that provides millisecond temporal resolution. This work has elucidated one general kinetic pathway for the process of PEC micelle formation, which provides useful physical insights for increasing our fundamental understanding of complexation and self-assembly dynamics driven by electrostatic interactions that occur on ultrafast timescales.

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