Singlet Exciton Delocalization in Gold Nanoparticle-Tethered Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering

Dongki Lee; Dong Hun Sin; Sang Woo Kim; Hansol Lee; Hye Ryung Byun; Jungho Mun; Woong Sung; Boseok Kang; Dae Gun Kim; Hyomin Ko; Sung Won Song; Mun Seok Jeong; Junsuk Rho; Kilwon Cho

doi:10.1021/acs.macromol.7b01416

Singlet Exciton Delocalization in Gold Nanoparticle-Tethered Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering

Dongki Lee, Dong Hun Sin, Sang Woo Kim, Hansol Lee, Hye Ryung Byun, Jungho Mun, Woong Sung, Boseok Kang, Dae Gun Kim, Hyomin Ko, Sung Won Song, Mun Seok Jeong, Junsuk Rho, Kilwon Cho

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

Abstract

We fabricated hybrid poly(3-hexylthiophene) nanofibers (P3HT NFs) with rigid backbone organization through the self-assembly of P3HT tethered to gold NPs (P3HT-Au NPs) in an azeotropic mixture of tetrahydrofuran and chloroform. We found that the rigidity of the P3HT chains derives from the tethering of the P3HT chains to the Au NPs and the control of the solubility of P3HT in the solvent. This unique nanostructure of hybrid P3HT NFs self-assembled in an azeotropic mixture exhibits significantly increased delocalization of singlet (S₁) excitons compared to those of pristine and hybrid P3HT NFs self-assembled in a poor solvent for P3HT. This strategy for the self-assembly of P3HT-Au NPs that generate long-lived S₁ excitons can also be applied to other crystalline conjugated polymers and NPs in various solvents and thus enables improvements in the efficiency of optoelectronic devices.

Original language	English
Pages (from-to)	8487-8496
Number of pages	10
Journal	Macromolecules
Volume	50
Issue number	21
DOIs	https://doi.org/10.1021/acs.macromol.7b01416
Publication status	Published - 2017 Nov 14

Bibliographical note

Funding Information:
The authors thank the Pohang Accelerator Laboratory (PAL) for providing the synchrotron radiation sources at 3C, 5A, and 9A beamlines and the National Institute for Nanomaterials Technology (NINT) at POSTECH for the HR and HADDF TEM experiments in used in this study. This work was supported by a grant (Code No. 2011-0031628) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the ministry of science and ICT, Korea.

Publisher Copyright:
© 2017 American Chemical Society.

All Science Journal Classification (ASJC) codes

Organic Chemistry
Polymers and Plastics
Inorganic Chemistry
Materials Chemistry

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10.1021/acs.macromol.7b01416

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title = "Singlet Exciton Delocalization in Gold Nanoparticle-Tethered Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering",

abstract = "We fabricated hybrid poly(3-hexylthiophene) nanofibers (P3HT NFs) with rigid backbone organization through the self-assembly of P3HT tethered to gold NPs (P3HT-Au NPs) in an azeotropic mixture of tetrahydrofuran and chloroform. We found that the rigidity of the P3HT chains derives from the tethering of the P3HT chains to the Au NPs and the control of the solubility of P3HT in the solvent. This unique nanostructure of hybrid P3HT NFs self-assembled in an azeotropic mixture exhibits significantly increased delocalization of singlet (S1) excitons compared to those of pristine and hybrid P3HT NFs self-assembled in a poor solvent for P3HT. This strategy for the self-assembly of P3HT-Au NPs that generate long-lived S1 excitons can also be applied to other crystalline conjugated polymers and NPs in various solvents and thus enables improvements in the efficiency of optoelectronic devices.",

author = "Dongki Lee and Sin, {Dong Hun} and Kim, {Sang Woo} and Hansol Lee and Byun, {Hye Ryung} and Jungho Mun and Woong Sung and Boseok Kang and Kim, {Dae Gun} and Hyomin Ko and Song, {Sung Won} and Jeong, {Mun Seok} and Junsuk Rho and Kilwon Cho",

note = "Funding Information: The authors thank the Pohang Accelerator Laboratory (PAL) for providing the synchrotron radiation sources at 3C, 5A, and 9A beamlines and the National Institute for Nanomaterials Technology (NINT) at POSTECH for the HR and HADDF TEM experiments in used in this study. This work was supported by a grant (Code No. 2011-0031628) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the ministry of science and ICT, Korea. Publisher Copyright: {\textcopyright} 2017 American Chemical Society.",

year = "2017",

month = nov,

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doi = "10.1021/acs.macromol.7b01416",

language = "English",

volume = "50",

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T1 - Singlet Exciton Delocalization in Gold Nanoparticle-Tethered Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering

AU - Lee, Dongki

AU - Sin, Dong Hun

AU - Kim, Sang Woo

AU - Lee, Hansol

AU - Byun, Hye Ryung

AU - Mun, Jungho

AU - Sung, Woong

AU - Kang, Boseok

AU - Kim, Dae Gun

AU - Ko, Hyomin

AU - Song, Sung Won

AU - Jeong, Mun Seok

AU - Rho, Junsuk

AU - Cho, Kilwon

N1 - Funding Information: The authors thank the Pohang Accelerator Laboratory (PAL) for providing the synchrotron radiation sources at 3C, 5A, and 9A beamlines and the National Institute for Nanomaterials Technology (NINT) at POSTECH for the HR and HADDF TEM experiments in used in this study. This work was supported by a grant (Code No. 2011-0031628) from the Center for Advanced Soft Electronics under the Global Frontier Research Program of the ministry of science and ICT, Korea. Publisher Copyright: © 2017 American Chemical Society.

PY - 2017/11/14

Y1 - 2017/11/14

N2 - We fabricated hybrid poly(3-hexylthiophene) nanofibers (P3HT NFs) with rigid backbone organization through the self-assembly of P3HT tethered to gold NPs (P3HT-Au NPs) in an azeotropic mixture of tetrahydrofuran and chloroform. We found that the rigidity of the P3HT chains derives from the tethering of the P3HT chains to the Au NPs and the control of the solubility of P3HT in the solvent. This unique nanostructure of hybrid P3HT NFs self-assembled in an azeotropic mixture exhibits significantly increased delocalization of singlet (S1) excitons compared to those of pristine and hybrid P3HT NFs self-assembled in a poor solvent for P3HT. This strategy for the self-assembly of P3HT-Au NPs that generate long-lived S1 excitons can also be applied to other crystalline conjugated polymers and NPs in various solvents and thus enables improvements in the efficiency of optoelectronic devices.

AB - We fabricated hybrid poly(3-hexylthiophene) nanofibers (P3HT NFs) with rigid backbone organization through the self-assembly of P3HT tethered to gold NPs (P3HT-Au NPs) in an azeotropic mixture of tetrahydrofuran and chloroform. We found that the rigidity of the P3HT chains derives from the tethering of the P3HT chains to the Au NPs and the control of the solubility of P3HT in the solvent. This unique nanostructure of hybrid P3HT NFs self-assembled in an azeotropic mixture exhibits significantly increased delocalization of singlet (S1) excitons compared to those of pristine and hybrid P3HT NFs self-assembled in a poor solvent for P3HT. This strategy for the self-assembly of P3HT-Au NPs that generate long-lived S1 excitons can also be applied to other crystalline conjugated polymers and NPs in various solvents and thus enables improvements in the efficiency of optoelectronic devices.

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Singlet Exciton Delocalization in Gold Nanoparticle-Tethered Poly(3-hexylthiophene) Nanofibers with Enhanced Intrachain Ordering

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

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