Bottom-up graphene-nanoribbon fabrication reveals chiral edges and enantioselectivity

Patrick Han; Kazuto Akagi; Filippo Federici Canova; Hirotaka Mutoh; Susumu Shiraki; Katsuya Iwaya; Paul S. Weiss; Naoki Asao; Taro Hitosugi

doi:10.1021/nn5028642

Bottom-up graphene-nanoribbon fabrication reveals chiral edges and enantioselectivity

Patrick Han, Kazuto Akagi, Filippo Federici Canova, Hirotaka Mutoh, Susumu Shiraki, Katsuya Iwaya, Paul S. Weiss, Naoki Asao, Taro Hitosugi

Advanced Institute for Materials Research (AIMR)

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

178 Citations (Scopus)

Abstract

We produce precise chiral-edge graphene nanoribbons on Cu{111} using self-assembly and surface-directed chemical reactions. We show that, using specific properties of the substrate, we can change the edge conformation of the nanoribbons, segregate their adsorption chiralities, and restrict their growth directions at low surface coverage. By elucidating the molecular-assembly mechanism, we demonstrate that our method constitutes an alternative bottom-up strategy toward synthesizing defect-free zigzag-edge graphene nanoribbons.

Original language	English
Pages (from-to)	9181-9187
Number of pages	7
Journal	ACS Nano
Volume	8
Issue number	9
DOIs	https://doi.org/10.1021/nn5028642
Publication status	Published - 2014 Sept 23

Keywords

bottom-up fabrication
graphene nanoribbons
scanning tunneling microscopy
surface-assisted molecular assembly

ASJC Scopus subject areas

Materials Science(all)
Engineering(all)
Physics and Astronomy(all)

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10.1021/nn5028642

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abstract = "We produce precise chiral-edge graphene nanoribbons on Cu{111} using self-assembly and surface-directed chemical reactions. We show that, using specific properties of the substrate, we can change the edge conformation of the nanoribbons, segregate their adsorption chiralities, and restrict their growth directions at low surface coverage. By elucidating the molecular-assembly mechanism, we demonstrate that our method constitutes an alternative bottom-up strategy toward synthesizing defect-free zigzag-edge graphene nanoribbons.",

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T1 - Bottom-up graphene-nanoribbon fabrication reveals chiral edges and enantioselectivity

AU - Han, Patrick

AU - Akagi, Kazuto

AU - Federici Canova, Filippo

AU - Mutoh, Hirotaka

AU - Shiraki, Susumu

AU - Iwaya, Katsuya

AU - Weiss, Paul S.

AU - Asao, Naoki

AU - Hitosugi, Taro

PY - 2014/9/23

Y1 - 2014/9/23

N2 - We produce precise chiral-edge graphene nanoribbons on Cu{111} using self-assembly and surface-directed chemical reactions. We show that, using specific properties of the substrate, we can change the edge conformation of the nanoribbons, segregate their adsorption chiralities, and restrict their growth directions at low surface coverage. By elucidating the molecular-assembly mechanism, we demonstrate that our method constitutes an alternative bottom-up strategy toward synthesizing defect-free zigzag-edge graphene nanoribbons.

AB - We produce precise chiral-edge graphene nanoribbons on Cu{111} using self-assembly and surface-directed chemical reactions. We show that, using specific properties of the substrate, we can change the edge conformation of the nanoribbons, segregate their adsorption chiralities, and restrict their growth directions at low surface coverage. By elucidating the molecular-assembly mechanism, we demonstrate that our method constitutes an alternative bottom-up strategy toward synthesizing defect-free zigzag-edge graphene nanoribbons.

KW - bottom-up fabrication

KW - graphene nanoribbons

KW - scanning tunneling microscopy

KW - surface-assisted molecular assembly

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Bottom-up graphene-nanoribbon fabrication reveals chiral edges and enantioselectivity

Abstract

Keywords

ASJC Scopus subject areas

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