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Title: Dynamic-template-directed multiscale assembly for large-area coating of highly-aligned conjugated polymer thin films

Solution processable semiconducting polymers have been under intense investigations due to their diverse applications from printed electronics to biomedical devices. However, controlling the macromolecular assembly across length scales during solution coating remains a key challenge, largely due to the disparity in timescales of polymer assembly and high-throughput printing/coating. Herein we propose the concept of dynamic templating to expedite polymer nucleation and the ensuing assembly process, inspired by biomineralization templates capable of surface reconfiguration. Molecular dynamic simulations reveal that surface reconfigurability is key to promoting template–polymer interactions, thereby lowering polymer nucleation barrier. Employing ionic-liquid-based dynamic template during meniscus-guided coating results in highly aligned, highly crystalline donor-acceptor polymer thin films over large area (41cm 2) and promoted charge transport along both the polymer backbone and the π-π stacking direction in field-effect transistors. We further demonstrate that the charge transport anisotropy can be reversed by tuning the degree of polymer backbone alignment.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [1] ;  [3] ; ORCiD logo [3] ;  [2] ;  [1] ; ORCiD logo [1]
  1. Univ. of Illinois at Urbana, IL (United States). Dept. of Chemical and Biomolecular Engineering,
  2. Univ. of Illinois at Urbana, IL (United States). Dept. of Materials Science and Engineering
  3. Purdue Univ., West Lafayette, IN (United States). Dept. of Chemistry
Publication Date:
Grant/Contract Number:
FG02-01ER45923
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 8; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Univ. of Illinois at Urbana-Champaign, IL (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE
OSTI Identifier:
1393549

Mohammadi, Erfan, Zhao, Chuankai, Meng, Yifei, Qu, Ge, Zhang, Fengjiao, Zhao, Xikang, Mei, Jianguo, Zuo, Jian-Min, Shukla, Diwakar, and Diao, Ying. Dynamic-template-directed multiscale assembly for large-area coating of highly-aligned conjugated polymer thin films. United States: N. p., Web. doi:10.1038/ncomms16070.
Mohammadi, Erfan, Zhao, Chuankai, Meng, Yifei, Qu, Ge, Zhang, Fengjiao, Zhao, Xikang, Mei, Jianguo, Zuo, Jian-Min, Shukla, Diwakar, & Diao, Ying. Dynamic-template-directed multiscale assembly for large-area coating of highly-aligned conjugated polymer thin films. United States. doi:10.1038/ncomms16070.
Mohammadi, Erfan, Zhao, Chuankai, Meng, Yifei, Qu, Ge, Zhang, Fengjiao, Zhao, Xikang, Mei, Jianguo, Zuo, Jian-Min, Shukla, Diwakar, and Diao, Ying. 2017. "Dynamic-template-directed multiscale assembly for large-area coating of highly-aligned conjugated polymer thin films". United States. doi:10.1038/ncomms16070. https://www.osti.gov/servlets/purl/1393549.
@article{osti_1393549,
title = {Dynamic-template-directed multiscale assembly for large-area coating of highly-aligned conjugated polymer thin films},
author = {Mohammadi, Erfan and Zhao, Chuankai and Meng, Yifei and Qu, Ge and Zhang, Fengjiao and Zhao, Xikang and Mei, Jianguo and Zuo, Jian-Min and Shukla, Diwakar and Diao, Ying},
abstractNote = {Solution processable semiconducting polymers have been under intense investigations due to their diverse applications from printed electronics to biomedical devices. However, controlling the macromolecular assembly across length scales during solution coating remains a key challenge, largely due to the disparity in timescales of polymer assembly and high-throughput printing/coating. Herein we propose the concept of dynamic templating to expedite polymer nucleation and the ensuing assembly process, inspired by biomineralization templates capable of surface reconfiguration. Molecular dynamic simulations reveal that surface reconfigurability is key to promoting template–polymer interactions, thereby lowering polymer nucleation barrier. Employing ionic-liquid-based dynamic template during meniscus-guided coating results in highly aligned, highly crystalline donor-acceptor polymer thin films over large area (41cm2) and promoted charge transport along both the polymer backbone and the π-π stacking direction in field-effect transistors. We further demonstrate that the charge transport anisotropy can be reversed by tuning the degree of polymer backbone alignment.},
doi = {10.1038/ncomms16070},
journal = {Nature Communications},
number = ,
volume = 8,
place = {United States},
year = {2017},
month = {7}
}

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