Control over the photophysical properties of nanoparticles of regioregular poly(3-octylthiophene) using various poor solvents

Potai, Ruttayapon; Traiphol, Rakchart

doi:10.1016/j.synthmet.2015.02.005

Cited by 9 publications

(4 citation statements)

References 56 publications

(98 reference statements)

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“…Because the hydrophobic P3HT:ICBA exhibits a better solubility in less polar solvents (Table S2), the decrease in polarity upon increasing the alkyl chain length for alcohols results in particles with slightly smaller diameter (Figure b) and narrower size distribution (Figure S3). A negatively charged surface has been observed for all the batches of NPs from ζ-potential measurements (Table S5). The stabilizing ζ-potential is known to scale with the acidity (p K a ) value shown in Table S5.…”

Section: Resultsmentioning

confidence: 99%

Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Xie

Tang

Berlinghof

et al. 2018

ACS Appl. Mater. Interfaces

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Development of high-quality organic nanoparticle inks is a significant scientific challenge for the industrial production of solution-processed organic photovoltaics (OPVs) with eco-friendly processing methods. In this work, we demonstrate a novel, robot-based, high-throughput procedure performing automatic poly(3-hexylthio-phene-2,5-diyl) and indene-C bisadduct nanoparticle ink synthesis in nontoxic alcohols. A novel methodology to prepare particle dispersions for fully functional OPVs by manipulating the particle size and solvent system was studied in detail. The ethanol dispersion with a particle diameter of around 80-100 nm exhibits reduced degradation, yielding a power conversion efficiency of 4.52%, which is the highest performance reported so far for water/alcohol-processed OPV devices. By successfully deploying the high-throughput robot-based approach for an organic nanoparticle ink preparation, we believe that the findings demonstrated in this work will trigger more research interest and effort on eco-friendly industrial production of OPVs.

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Section: Resultsmentioning

confidence: 99%

Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Xie

Tang

Berlinghof

et al. 2018

ACS Appl. Mater. Interfaces

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“…In general, however, it is difficult to access the influence of all these parameters on the aggregation process. Several studies on the influence of the solvent/non-solvent on polythiophene aggregation have been reported in the literature, but the exact role of the solvent/non-solvent is still not completely understood. − Several of these studies were aimed at optimizing their photophysical properties for organic electronics.…”

Section: Resultsmentioning

confidence: 99%

Solvent Role in the Self-Assembly of Poly(3-alkylthiophene): A Harmonic Light Scattering Study

et al. 2021

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s are known to self-assemble into well-ordered supramolecular assemblies. The organization influences the optical and electronic properties of these polymers. One way to induce supramolecular self-assembly is by lowering the solvent quality of solubilized poly(3-alkylthiophene) upon the addition of a non-solvent. Recently, the exact mechanism of the supramolecular self-assembly process has been explored for a chloroform/methanol (solvent/non-solvent) system. However, it is not clear how the solvent influences the supramolecular self-assembly mechanism. In this study, poly(3-alkylthiophene) is dissolved in two different solvents and the supramolecular self-assembly is fully explored by combining harmonic light scattering with electronic spectroscopy. Our results indicate that the actual supramolecular self-assembly is very different in both cases and that the choice of solvent has not only a significant influence on the assembly process but also on the structure of the final supramolecular assembly.

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“…Given their aromatic backbone and hydrophobicity, fluorescent SeDOCs were expected to undergo fluorescence quenching in poor solvents, similar to the quenching behavior seen with other hydrophobic emissive polymers such as polyalkylthiophenes. − Remarkably, our studies reveal that the block-like SeDOC resists AIQ when placed in a poor solvent in contrast to its sequence isomers. This sequence-dependent fluorescence quenching effect persisted in the solid phase even after these discrete oligomers were made into thin films and cross-linked into free-standing discs.…”

Section: Introductionmentioning

confidence: 99%

Discrete Oligocarbamates Exhibit Sequence-Dependent Fluorescence Emission and Quenching

et al. 2023

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The encoded precision of biological polymers enables a few simple monomers (e.g., four nucleotides in nucleic acids) to create complex macromolecular structures that accomplish a myriad of functions. Similar spatial precision in synthetic polymers and oligomers can be harnessed to create macromolecules and materials with rich and tunable properties. Recent exciting advances in iterative solid- and solution-phase synthetic strategies have led to the scalable production of discrete macromolecules, which in turn has enabled the study of sequence-dependent material properties. Our recent example of a scalable synthetic strategy using inexpensive vanillin-based monomers to create sequence-defined oligocarbamates (SeDOCs) enabled the preparation of isomeric oligomers with different thermal and mechanical properties. We show that unimolecular SeDOCs also exhibit sequence-dependent dynamic fluorescence quenching that persists from solution to the solid phase. We detail the evidence for this phenomenon and show that changes in fluorescence emissive properties are dependent on macromolecular conformation, which in turn is driven by sequence.

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Control over the photophysical properties of nanoparticles of regioregular poly(3-octylthiophene) using various poor solvents

Cited by 9 publications

References 56 publications

Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Robot-Based High-Throughput Engineering of Alcoholic Polymer: Fullerene Nanoparticle Inks for an Eco-Friendly Processing of Organic Solar Cells

Solvent Role in the Self-Assembly of Poly(3-alkylthiophene): A Harmonic Light Scattering Study

Discrete Oligocarbamates Exhibit Sequence-Dependent Fluorescence Emission and Quenching

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