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Title: Conjugated Polyelectrolyte-Based Complex Fluids as Aqueous Exciton Transport Networks

Journal Article · · Angewandte Chemie (International Edition)

The ability to assemble artificial systems that mimic aspects of natural light-harvesting functions is fascinating and attractive for materials design. Given the complexity of such a system, a simple design pathway is desirable. Here, we argue that associative phase separation of oppositely charged conjugated polyelectrolytes (CPEs) can provide such a path in an environmentally benign medium: water. We find that complexation between an exciton–donor and acceptor CPE leads to formation of a complex fluid. We interrogate exciton transfer from the donor to the acceptor CPE within the complex fluid and find that transfer is highly efficient. We also find that excess molecular ions can tune the modulus of the inter-CPE complex fluid. Even at high ion concentrations, CPEs remain complexed with significantly delocalized electronic wavefunctions. In conclusion, our work lays the rational foundation for complex, tunable aqueous light-harvesting systems via the intrinsic thermodynamics of associative phase separation.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States). Stanford Synchrotron Radiation Lightsource (SSRL)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES); National Science Foundation (NSF)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1981388
Journal Information:
Angewandte Chemie (International Edition), Journal Name: Angewandte Chemie (International Edition) Journal Issue: 20 Vol. 61; ISSN 1433-7851
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (51)

Polyion Charge Ratio Determines Transition between Bright and Dark Excitons in Donor/Acceptor-Conjugated Polyelectrolyte Complexes journal August 2018
Semiconducting Eggs and Ladders: Understanding Exciton Landscape Formation in Aqueous π-Conjugated Inter-Polyelectrolyte Complexes journal March 2020
Organic Photovoltaics: Relating Chemical Structure, Local Morphology, and Electronic Properties journal June 2020
Recent progress in the science of complex coacervation journal January 2020
Structure and Conductivity of Semiconducting Polymer Hydrogels journal April 2016
Efficient polymer solar cells that use conjugated polyelectrolyte with a tetravalent amine-end side chain journal February 2020
Get the Basics Right: Jacobian Conversion of Wavelength and Energy Scales for Quantitative Analysis of Emission Spectra journal October 2013
Phase Behavior and Salt Partitioning in Polyelectrolyte Complex Coacervates journal April 2018
A Review on Emerging Barrier Materials and Encapsulation Strategies for Flexible Perovskite and Organic Photovoltaics journal July 2021
Powering the future of molecular artificial photosynthesis with light-harvesting metallosupramolecular dye assemblies journal January 2013
In-Situ Synthesis of TiO2@GO Nanosheets for Polymers Degradation in a Natural Environment journal June 2021
Multiphase Adhesive Coacervates Inspired by the Sandcastle Worm journal March 2011
Molecular weight fractionation and the self-suppression of complex coacervation journal January 1967
Ambient Processable and Stable All-Polymer Organic Solar Cells journal January 2019
Quenching of aromatic hydrocarbon fluorescence by alkylpyridinium halides journal January 1973
A Supramolecular Artificial Light‐Harvesting System with Two‐Step Sequential Energy Transfer for Photochemical Catalysis journal November 2019
Effects of Non-Electrostatic Intermolecular Interactions on the Phase Behavior of pH-Sensitive Polyelectrolyte Complexes journal August 2020
Compartmentalised RNA catalysis in membrane-free coacervate protocells journal September 2018
Yield stress fluid flows: A review of experimental data journal September 2014
Nanocatalysis under Nanoconfinement: A Metal-Free Hybrid Coacervate Nanodroplet as a Catalytic Nanoreactor for Efficient Redox and Photocatalytic Reactions journal October 2021
Efficient polymer solar cells utilizing solution‐processed interlayer based on different conjugated backbones journal June 2020
Fluorescent H-Aggregate Vesicles and Tubes of a Cyanine Dye and Their Potential as Light-Harvesting Antennae journal July 2021
Recent Progress of Organic Photovoltaics with Efficiency over 17% journal July 2021
Construction of coacervate-in-coacervate multi-compartment protocells for spatial organization of enzymatic reactions journal January 2020
Theory of optical transitions in conjugated polymers. II. Real systems journal October 2014
Solar‐Powered Organic Semiconductor–Bacteria Biohybrids for CO 2 Reduction into Acetic Acid journal March 2020
Solar‐Powered Organic Semiconductor–Bacteria Biohybrids for CO 2 Reduction into Acetic Acid journal March 2020
Effect of Solvent Quality on the Phase Behavior of Polyelectrolyte Complexes journal December 2020
Bioinspiration in light harvesting and catalysis journal August 2020
Theory of optical transitions in conjugated polymers. I. Ideal systems journal October 2014
Review of Waterborne Organic Semiconductor Colloids for Photovoltaics journal February 2021
Aqueous Formulation of Concentrated Semiconductive Fluid Using Polyelectrolyte Coacervation journal July 2021
Recent progress of organic photovoltaics for indoor energy harvesting journal April 2021
Determining exciton coherence from the photoluminescence spectral line shape in poly(3-hexylthiophene) thin films journal February 2009
Polyelectrolyte Complexes Consisting of Macromolecules With Varied Stiffness: Computer Simulation journal February 2012
Viscoelastic Conjugated Polymer Fluids journal July 2019
Interaction of Tetraethylammonium Ion Derivatives with the Potassium Channels of Giant Axons journal October 1971
Origin of apparent viscosity in yield stress fluids below yielding journal August 2009
Complexation of a Conjugated Polyelectrolyte and Impact on Optoelectronic Properties journal January 2019
Nanoscale Strategies for Light Harvesting journal March 2016
Coacervate delivery systems for proteins and small molecule drugs journal August 2014
A Supramolecular Artificial Light‐Harvesting System with Two‐Step Sequential Energy Transfer for Photochemical Catalysis journal November 2019
Multiphase Complex Coacervate Droplets journal January 2020
Solid-to-Liquid Phase Transition in Polyelectrolyte Complexes journal August 2020
The role of coacervation and phase transitions in the sandcastle worm adhesive system journal January 2017
π+–π Interactions between (Hetero)aromatic Amine Cations and the Graphitic Surfaces of Pyrogenic Carbonaceous Materials journal January 2015
Associative Phase Separation of Aqueous π-Conjugated Polyelectrolytes Couples Photophysical and Mechanical Properties journal February 2021
Viskoelastische konjugierte polymere Fluide journal May 2019
Organic Semiconductor–Organism Interfaces for Augmenting Natural and Artificial Photosynthesis journal December 2021
Systematic Study of Quaternary Ammonium Cations for Bromine Sequestering Application in High Energy Density Electrolytes for Hydrogen Bromine Redox Flow Batteries journal May 2021
Quenching of fluorescence from pyrene-labeled poly(N-isopropylacrylamide) solutions heated above their lower critical solution temperature journal March 1990