N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**

Xuelin Yao; Heng Zhang; Fanmiao Kong; Antoine Hinaut; Rémy Pawlak; Masanari Okuno; Robert Graf; Peter N. Horton; Simon J. Coles; Ernst Meyer; Lapo Bogani; Mischa Bonn; Hai I. Wang; Klaus Müllen; Akimitsu Narita

doi:10.1002/anie.202312610

N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**

Xuelin Yao^*
, Heng Zhang
, Fanmiao Kong
, Antoine Hinaut
, Rémy Pawlak
, Masanari Okuno
, Robert Graf
, Peter N. Horton
, Simon J. Coles
, Ernst Meyer
, Lapo Bogani
, Mischa Bonn
, Hai I. Wang^*
, Klaus Müllen^*
, Akimitsu Narita^*

^*Corresponding author for this work

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

Abstract

Structurally defined graphene nanoribbons (GNRs) have emerged as promising candidates for nanoelectronic devices. Low band gap (<1 eV) GNRs are particularly important when considering the Schottky barrier in device performance. Here, we demonstrate the first solution synthesis of 8-AGNRs through a carefully designed arylated polynaphthalene precursor. The efficiency of the oxidative cyclodehydrogenation of the tailor-made polymer precursor into 8-AGNRs was validated by FT-IR, Raman, and UV/Vis-near-infrared (NIR) absorption spectroscopy, and further supported by the synthesis of naphtho[1,2,3,4-ghi]perylene derivatives (1 and 2) as subunits of 8-AGNR, with a width of 0.86 nm as suggested by the X-ray single crystal analysis. Low-temperature scanning tunneling microscopy (STM) and solid-state NMR analyses provided further structural support for 8-AGNR. The resulting 8-AGNR exhibited a remarkable NIR absorption extending up to ∼2400 nm, corresponding to an optical band gap as low as ∼0.52 eV. Moreover, optical-pump TeraHertz-probe spectroscopy revealed charge-carrier mobility in the dc limit of ∼270 cm² V⁻¹ s⁻¹ for the 8-AGNR.

Original language	English
Article number	e202312610
Pages (from-to)	1-7
Number of pages	7
Journal	Angewandte Chemie - International Edition
Volume	62
Issue number	46
DOIs	https://doi.org/10.1002/anie.202312610
Publication status	Published - 13 Nov 2023

Bibliographical note

Publisher Copyright:
© 2023 The Authors. Angewandte Chemie International Edition published by Wiley-VCH GmbH.

Funding

This work was financially supported by the Max Planck Society, the FLAG-ERA Grant OPERA by DFG 437130745, and JSPS KAKENHI (Grant Number 21KK0091). X. Yao is grateful for Marie Skłodowska-Curie Research Fellowship (894761-MolecularMAGNET). The authors would like to acknowledge the use of the University of Oxford Advanced Research Computing (ARC) facility. Open Access funding enabled and organized by Projekt DEAL. This work was financially supported by the Max Planck Society, the FLAG‐ERA Grant OPERA by DFG 437130745, and JSPS KAKENHI (Grant Number 21KK0091). X. Yao is grateful for Marie Skłodowska‐Curie Research Fellowship (894761‐MolecularMAGNET). The authors would like to acknowledge the use of the University of Oxford Advanced Research Computing (ARC) facility. Open Access funding enabled and organized by Projekt DEAL.

Funders	Funder number
H2020 Marie Skłodowska-Curie Actions
the Deutsche Forschungsgemeinschaft	437130745
Japan Society for the Promotion of Science	21KK0091, 894761‐MolecularMAGNET
Max Planck Gesellschaft

Keywords

Carbon Materials
Graphene Nanoribbons
High Charge Carrier Mobility
Low Bandgap
Time-Resolved Spectroscopy

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Angew Chem Int Ed - 2023 - Yao - N 8 Armchair Graphene Nanoribbons Solution Synthesis and High Charge Carrier MobilityFinal published version, 3.49 MBLicence: CC BY

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Yao, X., Zhang, H., Kong, F., Hinaut, A., Pawlak, R., Okuno, M., Graf, R., Horton, P. N., Coles, S. J., Meyer, E., Bogani, L., Bonn, M., Wang, H. I., Müllen, K., & Narita, A. (2023). N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**. Angewandte Chemie - International Edition, 62(46), 1-7. Article e202312610. https://doi.org/10.1002/anie.202312610

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title = "N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**",

abstract = "Structurally defined graphene nanoribbons (GNRs) have emerged as promising candidates for nanoelectronic devices. Low band gap (<1 eV) GNRs are particularly important when considering the Schottky barrier in device performance. Here, we demonstrate the first solution synthesis of 8-AGNRs through a carefully designed arylated polynaphthalene precursor. The efficiency of the oxidative cyclodehydrogenation of the tailor-made polymer precursor into 8-AGNRs was validated by FT-IR, Raman, and UV/Vis-near-infrared (NIR) absorption spectroscopy, and further supported by the synthesis of naphtho[1,2,3,4-ghi]perylene derivatives (1 and 2) as subunits of 8-AGNR, with a width of 0.86 nm as suggested by the X-ray single crystal analysis. Low-temperature scanning tunneling microscopy (STM) and solid-state NMR analyses provided further structural support for 8-AGNR. The resulting 8-AGNR exhibited a remarkable NIR absorption extending up to ∼2400 nm, corresponding to an optical band gap as low as ∼0.52 eV. Moreover, optical-pump TeraHertz-probe spectroscopy revealed charge-carrier mobility in the dc limit of ∼270 cm2 V−1 s−1 for the 8-AGNR.",

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Yao, X, Zhang, H, Kong, F, Hinaut, A, Pawlak, R, Okuno, M, Graf, R, Horton, PN, Coles, SJ, Meyer, E, Bogani, L, Bonn, M, Wang, HI, Müllen, K & Narita, A 2023, 'N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**', Angewandte Chemie - International Edition, vol. 62, no. 46, e202312610, pp. 1-7. https://doi.org/10.1002/anie.202312610

TY - JOUR

T1 - N=8 Armchair Graphene Nanoribbons

T2 - Solution Synthesis and High Charge Carrier Mobility**

AU - Yao, Xuelin

AU - Zhang, Heng

AU - Kong, Fanmiao

AU - Hinaut, Antoine

AU - Pawlak, Rémy

AU - Okuno, Masanari

AU - Graf, Robert

AU - Horton, Peter N.

AU - Coles, Simon J.

AU - Meyer, Ernst

AU - Bogani, Lapo

AU - Bonn, Mischa

AU - Wang, Hai I.

AU - Müllen, Klaus

AU - Narita, Akimitsu

PY - 2023/11/13

Y1 - 2023/11/13

N2 - Structurally defined graphene nanoribbons (GNRs) have emerged as promising candidates for nanoelectronic devices. Low band gap (<1 eV) GNRs are particularly important when considering the Schottky barrier in device performance. Here, we demonstrate the first solution synthesis of 8-AGNRs through a carefully designed arylated polynaphthalene precursor. The efficiency of the oxidative cyclodehydrogenation of the tailor-made polymer precursor into 8-AGNRs was validated by FT-IR, Raman, and UV/Vis-near-infrared (NIR) absorption spectroscopy, and further supported by the synthesis of naphtho[1,2,3,4-ghi]perylene derivatives (1 and 2) as subunits of 8-AGNR, with a width of 0.86 nm as suggested by the X-ray single crystal analysis. Low-temperature scanning tunneling microscopy (STM) and solid-state NMR analyses provided further structural support for 8-AGNR. The resulting 8-AGNR exhibited a remarkable NIR absorption extending up to ∼2400 nm, corresponding to an optical band gap as low as ∼0.52 eV. Moreover, optical-pump TeraHertz-probe spectroscopy revealed charge-carrier mobility in the dc limit of ∼270 cm2 V−1 s−1 for the 8-AGNR.

AB - Structurally defined graphene nanoribbons (GNRs) have emerged as promising candidates for nanoelectronic devices. Low band gap (<1 eV) GNRs are particularly important when considering the Schottky barrier in device performance. Here, we demonstrate the first solution synthesis of 8-AGNRs through a carefully designed arylated polynaphthalene precursor. The efficiency of the oxidative cyclodehydrogenation of the tailor-made polymer precursor into 8-AGNRs was validated by FT-IR, Raman, and UV/Vis-near-infrared (NIR) absorption spectroscopy, and further supported by the synthesis of naphtho[1,2,3,4-ghi]perylene derivatives (1 and 2) as subunits of 8-AGNR, with a width of 0.86 nm as suggested by the X-ray single crystal analysis. Low-temperature scanning tunneling microscopy (STM) and solid-state NMR analyses provided further structural support for 8-AGNR. The resulting 8-AGNR exhibited a remarkable NIR absorption extending up to ∼2400 nm, corresponding to an optical band gap as low as ∼0.52 eV. Moreover, optical-pump TeraHertz-probe spectroscopy revealed charge-carrier mobility in the dc limit of ∼270 cm2 V−1 s−1 for the 8-AGNR.

KW - Carbon Materials

KW - Graphene Nanoribbons

KW - High Charge Carrier Mobility

KW - Low Bandgap

KW - Time-Resolved Spectroscopy

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DO - 10.1002/anie.202312610

M3 - Article

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AN - SCOPUS:85173761569

SN - 1433-7851

VL - 62

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JO - Angewandte Chemie - International Edition

JF - Angewandte Chemie - International Edition

IS - 46

M1 - e202312610

ER -

N=8 Armchair Graphene Nanoribbons: Solution Synthesis and High Charge Carrier Mobility**

Abstract

Bibliographical note

Funding

Keywords

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