Tunable superstructures of dendronized graphene nanoribbons in liquid phase
Xu F, Yu C, Tries A, Zhang H, Klaeui M, Basse K, Hansen MR, Bilbao N, Bonn M, Wang HI, Mai Y (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 141
Pages Range: 10972-10977
Journal Issue: 28
DOI: 10.1021/jacs.9b04927
Abstract
In this Communication, we report the first synthesis of structurally well-defined graphene nanoribbons (GNRs) functionalized with dendritic polymers. The resultant GNRs possess grafting ratios of 0.59-0.68 for the dendrons of different generations. Remarkably, the precise 3D branched conformation of the grafted dendrons affords the GNRs unprecedented 1D supramolecular self-Assembly behavior in tetrahydrofuran (THF), yielding nanowires, helices and nanofibers depending on the dimension of the dendrons. The GNR superstructures in THF exhibit near-infrared absorption with maxima between 650 and 700 nm, yielding an optical bandgap of 1.2-1.3 eV. Ultrafast photoconductivity analyses unveil that the helical structures exhibit the longest free carrier (3.5 ps) and exciton lifetime (several hundred ps) among the three superstructure systems. This study opens pathways for tunable construction of ordered GNR superstructures with promising optoelectronic applications.
Involved external institutions
Max-Planck-Institut für Polymerforschung (MPI-P) / Max Planck Institute for Polymer Research
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Aarhus University
Denmark (DK)
Westfälische Wilhelms-Universität (WWU) Münster
Germany (DE)
Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven
Belgium (BE)
Shanghai Jiao Tong University / 上海交通大学
China (CN)
Germany (DE)
Johannes Gutenberg-Universität Mainz (JGU)
Germany (DE)
Aarhus University
Denmark (DK)
Westfälische Wilhelms-Universität (WWU) Münster
Germany (DE)
Katholieke Universiteit Leuven (KUL) / Catholic University of Leuven
Belgium (BE)
Shanghai Jiao Tong University / 上海交通大学
China (CN)
How to cite
APA:
Xu, F., Yu, C., Tries, A., Zhang, H., Klaeui, M., Basse, K.,... Mai, Y. (2019). Tunable superstructures of dendronized graphene nanoribbons in liquid phase. Journal of the American Chemical Society, 141(28), 10972-10977. https://doi.org/10.1021/jacs.9b04927
MLA:
Xu, Fugui, et al. "Tunable superstructures of dendronized graphene nanoribbons in liquid phase." Journal of the American Chemical Society 141.28 (2019): 10972-10977.
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