# Optimized Synthesis and Device Integration of Long 17-Atom-Wide Armchair Graphene Nanoribbons https://mdr.nims.go.jp/datasets/35a6c152-202f-4895-980b-dac31dbfe15f ## File - [17_AGNR_main.pdf](https://mdr.nims.go.jp/filesets/4a441461-409f-444e-8f70-7cbc2256abe9/download) ([Detail](https://mdr.nims.go.jp/filesets/4a441461-409f-444e-8f70-7cbc2256abe9.md)) ## Id 35a6c152-202f-4895-980b-dac31dbfe15f ## Local identifier ## Visibility open_to_public ## State published ## Created at 2025-12-13T02:25:19.937405Z ## Updated at 2026-04-30T03:01:11.491392Z ## Published at 2026-10-16T23:30:47.376385Z ## Doi https://doi.org/10.48505/nims.6010 ## First published url https://doi.org/10.1021/acsnano.5c11981 ## Date published 2025-10-28 ## Recorded date published 2025-10-28 ## Resource type journal_article ## Manuscript type accepted_manuscript ## Collection ## Title - title: Optimized Synthesis and Device Integration of Long 17-Atom-Wide Armchair Graphene Nanoribbons title_type: original lang: en ## Description - description: Seventeen-carbon-atom-wide armchair graphene nanoribbons (17-AGNRs) are promising candidates for high-performance electronic devices due to their narrow electronic bandgap. Atomic precision in edge structure and width control is achieved through a bottom-up on-surface synthesis (OSS) approach from tailored molecular precursors in ultrahigh vacuum (UHV). This synthetic protocol must be optimized to meet the structural requirements for device integration, with the ribbon length being the most critical parameter. Here, we report optimized OSS conditions that produce 17-AGNRs with an average length of ∼17 nm. This length enhancement is achieved through a gradual temperature ramping during an extended annealing period, combined with a template-like effect driven by monomer assembly at high surface coverage. The resulting 17-AGNRs are comprehensively characterized in UHV by using scanning probe techniques and Raman spectroscopy. Raman measurements following substrate transfer enabled the characterization of GNRs’ length distribution on the device substrate and confirmed their stability under ambient conditions and harsh chemical environments, including acid vapors and etchants. The increased length and ambient stability of the 17-AGNRs led to their reliable integration into device architectures. As a proof of concept, we integrate 17-AGNRs into field-effect transistors (FETs) with graphene electrodes and confirm that electronic transport occurs through the GNRs. This work demonstrates the feasibility of integrating narrow bandgap GNRs into functional devices and contributes to advancing the development of carbon-based nanoelectronics. description_type: abstract lang: und ## Creator - name: Jeong Ha Hwang role: author - name: Nicolò Bassi role: author - name: Mayada Fadel role: author - name: Oliver Braun role: author - name: Tim Dumslaff role: author - name: Carlo A. Pignedoli role: author - name: Michael Stiefel role: author - name: Roman Furrer role: author - name: Hironobu Hayashi role: author orcid: https://orcid.org/0000-0002-7872-3052 organization: National Institute for Materials Science - name: Hiroko Yamada role: author - name: Akimitsu Narita role: author - name: Klaus Müllen role: author - name: Michel Calame role: author - name: Mickael Perrin role: author - name: Roman Fasel role: author - name: Pascal Ruffieux role: author - name: Vincent Meunier role: author - name: Gabriela Borin Barin role: author ## Contact agent ## Publisher organization: American Chemical Society (ACS) ## Managing organization ## Keyword - subject: on-surface synthesis schema: not_defined - subject: graphene nanoribbon schema: not_defined - subject: field-effect transistor schema: not_defined - subject: nanoelectronics schema: not_defined - subject: precursor schema: not_defined ## Rights - description: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © 2025 American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.5c11981. identifier: http://rightsstatements.org/vocab/InC/1.0/ ## Other identifier(s) ## Data origin - data_origin_type: other ## Embargo start_date: 2025-10-17 end_date: 2026-10-17 ## Journal - title: ACS Nano issn: '19360851' volume: '19' issue: '42' start_page: 37230 end_page: 37240 ## Conference ## Related item ## Funding - funder_name: Werner Siemens-Stiftung - identifier: A21-0125-002 funder_name: Rensselaer Polytechnic Institute - identifier: A50634.2326 funder_name: Rensselaer Polytechnic Institute - identifier: '189924' funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: '196795' funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: 200021E-219172/1 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: '212875' funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: PCEFP2 203663 funder_name: Schweizerischer Nationalfonds zur F?rderung der Wissenschaftlichen Forschung - identifier: JP20H02816 funder_name: Japan Society for the Promotion of Science - identifier: JP20H05833 funder_name: Japan Society for the Promotion of Science - identifier: JP24K01576 funder_name: Japan Society for the Promotion of Science - identifier: JP25K01751 funder_name: Japan Society for the Promotion of Science - identifier: '101099098' funder_name: Horizon 2020 Framework Programme - identifier: '767187' funder_name: Horizon 2020 Framework Programme - identifier: '881603' funder_name: Graphene Flagship - identifier: MB22.00076 funder_name: Swiss State Secretariat for Education, Research and Innovation ## Instrument ## Instrument operator ## Instrument managing organization ## Measurement method ## Specimen ## Chemical composition ## Structure for specimen ## Structural feature for specimen ## Specific property for specimen ## Process for specimen treatment ## Computational method ## Energy level/transition state ## Software ## Custom property ## Fileset - id: 4a441461-409f-444e-8f70-7cbc2256abe9 filename: 17_AGNR_main.pdf content_type: application/pdf size: 9514340 md5: 93682d9c457d93dadf57b244f21ddc25 ## Thumbnail fileset_id: 4a441461-409f-444e-8f70-7cbc2256abe9 filename: 17_AGNR_main.pdf