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    Rights statement: This is the peer reviewed version of the following article: B. Limburg, J. O. Thomas, G. Holloway, H. Sadeghi, S. Sangtarash, I. C.‐Y. Hou, J. Cremers, A. Narita, K. Müllen, C. J. Lambert, G. A. D. Briggs, J. A. Mol, H. L. Anderson, Adv. Funct. Mater. 2018, 28, 1803629. https://doi.org/10.1002/adfm.201803629 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/adfm.201803629/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

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Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors

Research output: Contribution to Journal/MagazineJournal articlepeer-review

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Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors. / Limburg, Bart; Thomas, James O.; Holloway, Gregory et al.
In: Advanced Functional Materials, Vol. 28, No. 45, 1803629, 07.11.2018.

Research output: Contribution to Journal/MagazineJournal articlepeer-review

Harvard

Limburg, B, Thomas, JO, Holloway, G, Sadeghi, H, Sangtarash, S, Hou, IC, Cremers, J, Narita, A, Müllen, K, Lambert, CJ, Briggs, GAD, Mol, JA & Anderson, HL 2018, 'Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors', Advanced Functional Materials, vol. 28, no. 45, 1803629. https://doi.org/10.1002/adfm.201803629

APA

Limburg, B., Thomas, J. O., Holloway, G., Sadeghi, H., Sangtarash, S., Hou, I. C., Cremers, J., Narita, A., Müllen, K., Lambert, C. J., Briggs, G. A. D., Mol, J. A., & Anderson, H. L. (2018). Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors. Advanced Functional Materials, 28(45), Article 1803629. https://doi.org/10.1002/adfm.201803629

Vancouver

Limburg B, Thomas JO, Holloway G, Sadeghi H, Sangtarash S, Hou IC et al. Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors. Advanced Functional Materials. 2018 Nov 7;28(45):1803629. Epub 2018 Sept 14. doi: 10.1002/adfm.201803629

Author

Limburg, Bart ; Thomas, James O. ; Holloway, Gregory et al. / Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors. In: Advanced Functional Materials. 2018 ; Vol. 28, No. 45.

Bibtex

@article{e363df4841be46fc92182866d80a0278,
title = "Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors",
abstract = "The effectiveness of five different anchor groups for non‐covalent interfacing to graphene electrodes are compared. A family of six molecules is tested in single‐molecule junctions: five consist of the same porphyrin core with different anchor groups, and the sixth is a reference molecule without anchor groups. The junction formation probability (JFP) has a strong dependence on the anchor group. Larger anchors give higher binding energies to the graphene surface, correlating with higher JFPs. The best anchor groups tested are 1,3,8‐tridodecyloxypyrene and 2,5,8,11,14‐pentadodecylhexa‐peri‐hexabenzocoronene, with JFPs of 36% and 38%, respectively. Many junctions are tested at 77 K for each molecule by measuring source‐drain current as a function of bias and gate voltages. For each compound, there is wide variation in the strength of the electronic coupling to the electrodes and in the location of Coulomb peaks. In most cases, this device‐to‐device variability makes it impossible to observe trends between the anchor and the charge‐transport characteristics. Tetrabenzofluorene anchors, which are not π‐conjugated with the porphyrin, exhibit different charge transport behavior to the other anchors tested, and they show multiple Coulomb peaks with characteristically small molecular electron‐addition energies of 0.3–0.7 eV, whereas the other compounds give single Coulomb peaks. ",
keywords = "charge transport, graphene, molecular electronics, porphyrins, single molecules",
author = "Bart Limburg and Thomas, {James O.} and Gregory Holloway and Hatef Sadeghi and Sara Sangtarash and Hou, {Ian Cheng-yi} and Jonathan Cremers and Akimitsu Narita and Klaus M{\"u}llen and Lambert, {Colin J.} and Briggs, {G. Andrew D.} and Mol, {Jan A.} and Anderson, {Harry L.}",
note = "This is the peer reviewed version of the following article: B. Limburg, J. O. Thomas, G. Holloway, H. Sadeghi, S. Sangtarash, I. C.‐Y. Hou, J. Cremers, A. Narita, K. M{\"u}llen, C. J. Lambert, G. A. D. Briggs, J. A. Mol, H. L. Anderson, Adv. Funct. Mater. 2018, 28, 1803629. https://doi.org/10.1002/adfm.201803629 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/adfm.201803629/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.",
year = "2018",
month = nov,
day = "7",
doi = "10.1002/adfm.201803629",
language = "English",
volume = "28",
journal = "Advanced Functional Materials",
issn = "1616-301X",
publisher = "John Wiley & Sons, Ltd",
number = "45",

}

RIS

TY - JOUR

T1 - Anchor Groups for Graphene-Porphyrin Single-Molecule Transistors

AU - Limburg, Bart

AU - Thomas, James O.

AU - Holloway, Gregory

AU - Sadeghi, Hatef

AU - Sangtarash, Sara

AU - Hou, Ian Cheng-yi

AU - Cremers, Jonathan

AU - Narita, Akimitsu

AU - Müllen, Klaus

AU - Lambert, Colin J.

AU - Briggs, G. Andrew D.

AU - Mol, Jan A.

AU - Anderson, Harry L.

N1 - This is the peer reviewed version of the following article: B. Limburg, J. O. Thomas, G. Holloway, H. Sadeghi, S. Sangtarash, I. C.‐Y. Hou, J. Cremers, A. Narita, K. Müllen, C. J. Lambert, G. A. D. Briggs, J. A. Mol, H. L. Anderson, Adv. Funct. Mater. 2018, 28, 1803629. https://doi.org/10.1002/adfm.201803629 which has been published in final form at http://onlinelibrary.wiley.com/doi/10.1002/adfm.201803629/abstract This article may be used for non-commercial purposes in accordance With Wiley Terms and Conditions for self-archiving.

PY - 2018/11/7

Y1 - 2018/11/7

N2 - The effectiveness of five different anchor groups for non‐covalent interfacing to graphene electrodes are compared. A family of six molecules is tested in single‐molecule junctions: five consist of the same porphyrin core with different anchor groups, and the sixth is a reference molecule without anchor groups. The junction formation probability (JFP) has a strong dependence on the anchor group. Larger anchors give higher binding energies to the graphene surface, correlating with higher JFPs. The best anchor groups tested are 1,3,8‐tridodecyloxypyrene and 2,5,8,11,14‐pentadodecylhexa‐peri‐hexabenzocoronene, with JFPs of 36% and 38%, respectively. Many junctions are tested at 77 K for each molecule by measuring source‐drain current as a function of bias and gate voltages. For each compound, there is wide variation in the strength of the electronic coupling to the electrodes and in the location of Coulomb peaks. In most cases, this device‐to‐device variability makes it impossible to observe trends between the anchor and the charge‐transport characteristics. Tetrabenzofluorene anchors, which are not π‐conjugated with the porphyrin, exhibit different charge transport behavior to the other anchors tested, and they show multiple Coulomb peaks with characteristically small molecular electron‐addition energies of 0.3–0.7 eV, whereas the other compounds give single Coulomb peaks.

AB - The effectiveness of five different anchor groups for non‐covalent interfacing to graphene electrodes are compared. A family of six molecules is tested in single‐molecule junctions: five consist of the same porphyrin core with different anchor groups, and the sixth is a reference molecule without anchor groups. The junction formation probability (JFP) has a strong dependence on the anchor group. Larger anchors give higher binding energies to the graphene surface, correlating with higher JFPs. The best anchor groups tested are 1,3,8‐tridodecyloxypyrene and 2,5,8,11,14‐pentadodecylhexa‐peri‐hexabenzocoronene, with JFPs of 36% and 38%, respectively. Many junctions are tested at 77 K for each molecule by measuring source‐drain current as a function of bias and gate voltages. For each compound, there is wide variation in the strength of the electronic coupling to the electrodes and in the location of Coulomb peaks. In most cases, this device‐to‐device variability makes it impossible to observe trends between the anchor and the charge‐transport characteristics. Tetrabenzofluorene anchors, which are not π‐conjugated with the porphyrin, exhibit different charge transport behavior to the other anchors tested, and they show multiple Coulomb peaks with characteristically small molecular electron‐addition energies of 0.3–0.7 eV, whereas the other compounds give single Coulomb peaks.

KW - charge transport

KW - graphene

KW - molecular electronics

KW - porphyrins

KW - single molecules

U2 - 10.1002/adfm.201803629

DO - 10.1002/adfm.201803629

M3 - Journal article

VL - 28

JO - Advanced Functional Materials

JF - Advanced Functional Materials

SN - 1616-301X

IS - 45

M1 - 1803629

ER -