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Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting.

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Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting. / Sang, Hongqian; Jarvis, Samuel P.; Zhou, Zhichao; Sharp, Peter; Moriarty, Philip; Wang, Jianbo; Wang, Yu; Kantorovich, Lev.

In: Scientific Reports, Vol. 4, 6678, 20.10.2014.

Research output: Contribution to journalJournal articlepeer-review

Harvard

Sang, H, Jarvis, SP, Zhou, Z, Sharp, P, Moriarty, P, Wang, J, Wang, Y & Kantorovich, L 2014, 'Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting.', Scientific Reports, vol. 4, 6678. https://doi.org/10.1038/srep06678

APA

Sang, H., Jarvis, S. P., Zhou, Z., Sharp, P., Moriarty, P., Wang, J., Wang, Y., & Kantorovich, L. (2014). Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting. Scientific Reports, 4, [6678]. https://doi.org/10.1038/srep06678

Vancouver

Sang H, Jarvis SP, Zhou Z, Sharp P, Moriarty P, Wang J et al. Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting. Scientific Reports. 2014 Oct 20;4. 6678. https://doi.org/10.1038/srep06678

Author

Sang, Hongqian ; Jarvis, Samuel P. ; Zhou, Zhichao ; Sharp, Peter ; Moriarty, Philip ; Wang, Jianbo ; Wang, Yu ; Kantorovich, Lev. / Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting. In: Scientific Reports. 2014 ; Vol. 4.

Bibtex

@article{d2f72468bd4e45a79a21b682d2d41a04,
title = "Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting.",
abstract = "A practical experimental strategy is proposed that could potentially enable greater control of the tip apex in non-contact atomic force microscopy experiments. It is based on a preparation of a structure of interest alongside a reference surface reconstruction on the same sample. Our proposed strategy is as follows. Spectroscopy measurements are first performed on the reference surface to identify the tip apex structure using a previously collected database of responses of different tips to this surface. Next, immediately following the tip identification protocol, the surface of interest is studied (imaging, manipulation and/or spectroscopy). The prototype system we choose is the mixed Si(111)-7×7 and surface which can be prepared on the same sample with a controlled ratio of reactive and passivated regions. Using an {"}in silico{"} approach based on ab initio density functional calculations and a set of tips with varying chemical reactivities, we show how one can perform tip fingerprinting using the Si(111)-7×7 reference surface. Then it is found by examining the imaging of a naphthalene tetracarboxylic diimide (NTCDI) molecule adsorbed on surface that negatively charged tips produce the best intramolecular contrast attributed to the enhancement of repulsive interactions.",
keywords = "interfaces, surfaces",
author = "Hongqian Sang and Jarvis, {Samuel P.} and Zhichao Zhou and Peter Sharp and Philip Moriarty and Jianbo Wang and Yu Wang and Lev Kantorovich",
year = "2014",
month = oct,
day = "20",
doi = "10.1038/srep06678",
language = "English",
volume = "4",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",

}

RIS

TY - JOUR

T1 - Identifying tips for intramolecular NC-AFM imaging via in situ fingerprinting.

AU - Sang, Hongqian

AU - Jarvis, Samuel P.

AU - Zhou, Zhichao

AU - Sharp, Peter

AU - Moriarty, Philip

AU - Wang, Jianbo

AU - Wang, Yu

AU - Kantorovich, Lev

PY - 2014/10/20

Y1 - 2014/10/20

N2 - A practical experimental strategy is proposed that could potentially enable greater control of the tip apex in non-contact atomic force microscopy experiments. It is based on a preparation of a structure of interest alongside a reference surface reconstruction on the same sample. Our proposed strategy is as follows. Spectroscopy measurements are first performed on the reference surface to identify the tip apex structure using a previously collected database of responses of different tips to this surface. Next, immediately following the tip identification protocol, the surface of interest is studied (imaging, manipulation and/or spectroscopy). The prototype system we choose is the mixed Si(111)-7×7 and surface which can be prepared on the same sample with a controlled ratio of reactive and passivated regions. Using an "in silico" approach based on ab initio density functional calculations and a set of tips with varying chemical reactivities, we show how one can perform tip fingerprinting using the Si(111)-7×7 reference surface. Then it is found by examining the imaging of a naphthalene tetracarboxylic diimide (NTCDI) molecule adsorbed on surface that negatively charged tips produce the best intramolecular contrast attributed to the enhancement of repulsive interactions.

AB - A practical experimental strategy is proposed that could potentially enable greater control of the tip apex in non-contact atomic force microscopy experiments. It is based on a preparation of a structure of interest alongside a reference surface reconstruction on the same sample. Our proposed strategy is as follows. Spectroscopy measurements are first performed on the reference surface to identify the tip apex structure using a previously collected database of responses of different tips to this surface. Next, immediately following the tip identification protocol, the surface of interest is studied (imaging, manipulation and/or spectroscopy). The prototype system we choose is the mixed Si(111)-7×7 and surface which can be prepared on the same sample with a controlled ratio of reactive and passivated regions. Using an "in silico" approach based on ab initio density functional calculations and a set of tips with varying chemical reactivities, we show how one can perform tip fingerprinting using the Si(111)-7×7 reference surface. Then it is found by examining the imaging of a naphthalene tetracarboxylic diimide (NTCDI) molecule adsorbed on surface that negatively charged tips produce the best intramolecular contrast attributed to the enhancement of repulsive interactions.

KW - interfaces

KW - surfaces

U2 - 10.1038/srep06678

DO - 10.1038/srep06678

M3 - Journal article

VL - 4

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

M1 - 6678

ER -