Controlling Molecular Ordering in Solution-State Conjugated Polymers
Abstract
Rationally encoding molecular interactions that can control the assembly structure and functional expression in solution of conjugated polymers holds great potential for enabling optimal organic optoelectronic and sensory materials. In this work, we show that thermally-controlled and surfactant-guided assembly of water-soluble conjugated polymers in aqueous solution is a simple and effective strategy to generate optoelectronic materials with desired molecular ordering. We have studied a conjugated polymer consisting of a hydrophobic thiophene backbone and hydrophilic, thermo-responsive ethylene oxide side groups, which shows a step-wise, multi-dimensional assembly in water. By incorporating the polymer into phase-segregated domains of an amphiphilic surfactant in solution, we demonstrate that both chain conformation and degree of molecular ordering of the conjugated polymer can be tuned in hexagonal, micellar and lamellar phases of the surfactant solution. The controlled molecular ordering in conjugated polymer assembly is demonstrated as a key factor determining the electronic interaction and optical function.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Science
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1223072
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nanoscale
- Additional Journal Information:
- Journal Volume: 7; Journal Issue: 37; Journal ID: ISSN 2040-3364
- Publisher:
- Royal Society of Chemistry
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 77 NANOSCIENCE AND NANOTECHNOLOGY; self-assembly; photovoltaic; p3ht
Citation Formats
Zhu, Jiahua, Han, Youngkyu, Kumar, Rajeev, Hong, Kunlun, Bonnesen, Peter V., Sumpter, Bobby G., Smith, Gregory Scott, Ivanov, Ilia N., and Do, Changwoo. Controlling Molecular Ordering in Solution-State Conjugated Polymers. United States: N. p., 2015.
Web. doi:10.1039/C5NR02037A.
Zhu, Jiahua, Han, Youngkyu, Kumar, Rajeev, Hong, Kunlun, Bonnesen, Peter V., Sumpter, Bobby G., Smith, Gregory Scott, Ivanov, Ilia N., & Do, Changwoo. Controlling Molecular Ordering in Solution-State Conjugated Polymers. United States. https://doi.org/10.1039/C5NR02037A
Zhu, Jiahua, Han, Youngkyu, Kumar, Rajeev, Hong, Kunlun, Bonnesen, Peter V., Sumpter, Bobby G., Smith, Gregory Scott, Ivanov, Ilia N., and Do, Changwoo. Fri .
"Controlling Molecular Ordering in Solution-State Conjugated Polymers". United States. https://doi.org/10.1039/C5NR02037A. https://www.osti.gov/servlets/purl/1223072.
@article{osti_1223072,
title = {Controlling Molecular Ordering in Solution-State Conjugated Polymers},
author = {Zhu, Jiahua and Han, Youngkyu and Kumar, Rajeev and Hong, Kunlun and Bonnesen, Peter V. and Sumpter, Bobby G. and Smith, Gregory Scott and Ivanov, Ilia N. and Do, Changwoo},
abstractNote = {Rationally encoding molecular interactions that can control the assembly structure and functional expression in solution of conjugated polymers holds great potential for enabling optimal organic optoelectronic and sensory materials. In this work, we show that thermally-controlled and surfactant-guided assembly of water-soluble conjugated polymers in aqueous solution is a simple and effective strategy to generate optoelectronic materials with desired molecular ordering. We have studied a conjugated polymer consisting of a hydrophobic thiophene backbone and hydrophilic, thermo-responsive ethylene oxide side groups, which shows a step-wise, multi-dimensional assembly in water. By incorporating the polymer into phase-segregated domains of an amphiphilic surfactant in solution, we demonstrate that both chain conformation and degree of molecular ordering of the conjugated polymer can be tuned in hexagonal, micellar and lamellar phases of the surfactant solution. The controlled molecular ordering in conjugated polymer assembly is demonstrated as a key factor determining the electronic interaction and optical function.},
doi = {10.1039/C5NR02037A},
journal = {Nanoscale},
number = 37,
volume = 7,
place = {United States},
year = {Fri Jul 17 00:00:00 EDT 2015},
month = {Fri Jul 17 00:00:00 EDT 2015}
}
Web of Science
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