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Title: A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons

Despite the great promise of armchair graphene nanoribbons (aGNRs) as high-performance semiconductors, practical band-gap engineering of aGNRs remains an unmet challenge. Given that width and edge structures are the two key factors for modulating band-gaps of aGNRs, a reliable synthetic method that allows control of both factors would be highly desirable. We report a simple modular strategy for efficient preparation of N = 6 aGNR, the narrowest member in the N = 3p (p: natural number) aGNR family, and two unsymmetrically edge-functionalized GNRs that contain benzothiadiazole and benzotriazole moieties. The trend of band-gap transitions among these GNRs parallels those in donor-acceptor alternating conjugated polymers. In addition, post-functionalization of the unsymmetrical heterocyclic edge via C-H borylation permits further band-gap tuning. Therefore, this method opens the door for convenient band-gap engineering of aGNRs through modifying the heteroarenes on the edge.
Authors:
 [1] ;  [1] ;  [2] ;  [1] ;  [3] ;  [3] ;  [3] ;  [2] ; ORCiD logo [1]
  1. Univ. of Chicago, IL (United States). Dept. of Chemistry; Univ. of Texas, Austin, TX (United States). Dept. of Chemistry
  2. Columbia Univ., New York, NY (United States). Dept. of Chemistry
  3. Argonne National Lab. (ANL), Argonne, IL (United States). Center for Nanoscale Materials
Publication Date:
Grant/Contract Number:
AC02-06CH11357; CHE 1707399; F 1781; DMR 1420634; DMR-1420709
Type:
Accepted Manuscript
Journal Name:
Nature Communications
Additional Journal Information:
Journal Volume: 9; Journal Issue: 1; Journal ID: ISSN 2041-1723
Publisher:
Nature Publishing Group
Research Org:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); National Science Foundation (NSF); Welch Foundation
Country of Publication:
United States
Language:
English
Subject:
77 NANOSCIENCE AND NANOTECHNOLOGY; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
OSTI Identifier:
1474402

Li, Gang, Yoon, Ki-Young, Zhong, Xinjue, Wang, Jianchun, Zhang, Rui, Guest, Jeffrey R., Wen, Jianguo, Zhu, X. -Y., and Dong, Guangbin. A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons. United States: N. p., Web. doi:10.1038/s41467-018-03747-2.
Li, Gang, Yoon, Ki-Young, Zhong, Xinjue, Wang, Jianchun, Zhang, Rui, Guest, Jeffrey R., Wen, Jianguo, Zhu, X. -Y., & Dong, Guangbin. A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons. United States. doi:10.1038/s41467-018-03747-2.
Li, Gang, Yoon, Ki-Young, Zhong, Xinjue, Wang, Jianchun, Zhang, Rui, Guest, Jeffrey R., Wen, Jianguo, Zhu, X. -Y., and Dong, Guangbin. 2018. "A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons". United States. doi:10.1038/s41467-018-03747-2. https://www.osti.gov/servlets/purl/1474402.
@article{osti_1474402,
title = {A modular synthetic approach for band-gap engineering of armchair graphene nanoribbons},
author = {Li, Gang and Yoon, Ki-Young and Zhong, Xinjue and Wang, Jianchun and Zhang, Rui and Guest, Jeffrey R. and Wen, Jianguo and Zhu, X. -Y. and Dong, Guangbin},
abstractNote = {Despite the great promise of armchair graphene nanoribbons (aGNRs) as high-performance semiconductors, practical band-gap engineering of aGNRs remains an unmet challenge. Given that width and edge structures are the two key factors for modulating band-gaps of aGNRs, a reliable synthetic method that allows control of both factors would be highly desirable. We report a simple modular strategy for efficient preparation of N = 6 aGNR, the narrowest member in the N = 3p (p: natural number) aGNR family, and two unsymmetrically edge-functionalized GNRs that contain benzothiadiazole and benzotriazole moieties. The trend of band-gap transitions among these GNRs parallels those in donor-acceptor alternating conjugated polymers. In addition, post-functionalization of the unsymmetrical heterocyclic edge via C-H borylation permits further band-gap tuning. Therefore, this method opens the door for convenient band-gap engineering of aGNRs through modifying the heteroarenes on the edge.},
doi = {10.1038/s41467-018-03747-2},
journal = {Nature Communications},
number = 1,
volume = 9,
place = {United States},
year = {2018},
month = {4}
}

Works referenced in this record:

Chemically Derived, Ultrasmooth Graphene Nanoribbon Semiconductors
journal, February 2008

Graphene nano-ribbon electronics
journal, December 2007
  • Chen, Zhihong; Lin, Yu-Ming; Rooks, Michael J.
  • Physica E: Low-dimensional Systems and Nanostructures, Vol. 40, Issue 2, p. 228-232
  • DOI: 10.1016/j.physe.2007.06.020

Raman spectroscopy in graphene
journal, April 2009