Electronic characterization of silicon intercalated chevron graphene nanoribbons on Au(111)

O. Deniz; C. Sánchez-Sánchez; R. Jaafar; N. Kharche; L. Liang; V. Meunier; X. Feng; K. Müllen; R. Fasel; P. Ruffieux

doi:10.1039/c7cc08353j

Electronic characterization of silicon intercalated chevron graphene nanoribbons on Au(111)

O. Deniz, C. Sánchez-Sánchez, R. Jaafar, N. Kharche, L. Liang, V. Meunier, X. Feng, K. Müllen, R. Fasel, P. Ruffieux

Nanomaterials Theory Institute

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

21 Scopus citations

Abstract

Electronic and thermal properties of chevron-type graphene nanoribbons can be widely tuned, making them interesting candidates for electronic and thermoelectric applications. Here, we use post-growth silicon intercalation to unambiguously access nanoribbons' energy position of their electronic frontier states. These are otherwise obscured by substrate effects when investigated directly on the growth substrate. In agreement with first-principles calculations we find a band gap of 2.4 eV.

Original language	English
Pages (from-to)	1619-1622
Number of pages	4
Journal	Chemical Communications
Volume	54
Issue number	13
DOIs	https://doi.org/10.1039/c7cc08353j
State	Published - 2018

Funding

This work has been supported by the Swiss National Science Foundation, the Office of Naval Research BRC program (award N00014-12-1-1009), and the European Commission Graphene Flagship (No. CNECT-ICT-604391). CSS is grateful to Ministerio de Economía y Competitividad for financial support via the Juan de la Cierva Incorporación grant (IJCI-2014-19291, co-funded by the European Investment Bank). LL was supported by Eugene Wigner Fellowship at Oak Ridge National Laboratory.

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AU - Deniz, O.

AU - Sánchez-Sánchez, C.

AU - Jaafar, R.

AU - Kharche, N.

AU - Liang, L.

AU - Meunier, V.

AU - Feng, X.

AU - Müllen, K.

AU - Fasel, R.

AU - Ruffieux, P.

PY - 2018

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N2 - Electronic and thermal properties of chevron-type graphene nanoribbons can be widely tuned, making them interesting candidates for electronic and thermoelectric applications. Here, we use post-growth silicon intercalation to unambiguously access nanoribbons' energy position of their electronic frontier states. These are otherwise obscured by substrate effects when investigated directly on the growth substrate. In agreement with first-principles calculations we find a band gap of 2.4 eV.

AB - Electronic and thermal properties of chevron-type graphene nanoribbons can be widely tuned, making them interesting candidates for electronic and thermoelectric applications. Here, we use post-growth silicon intercalation to unambiguously access nanoribbons' energy position of their electronic frontier states. These are otherwise obscured by substrate effects when investigated directly on the growth substrate. In agreement with first-principles calculations we find a band gap of 2.4 eV.

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ER -

Electronic characterization of silicon intercalated chevron graphene nanoribbons on Au(111)

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