---
_id: '13399'
abstract:
- lang: eng
  text: Nature has long inspired scientists with its seemingly unlimited ability to
    harness solar energy and to utilize it to drive various physiological processes.
    With the help of man-made molecular photoswitches, we now have the potential to
    outperform natural systems in many ways, with the ultimate goal of fabricating
    multifunctional materials that operate at different light wavelengths. An important
    challenge in developing light-controlled artificial molecular machines lies in
    attaining a detailed understanding of the photoisomerization-coupled conformational
    changes that occur in macromolecules and molecular assemblies. In this issue of
    ACS Nano, Bléger, Rabe, and co-workers use force microscopy to provide interesting
    insights into the behavior of individual photoresponsive molecules and to identify
    contraction, extension, and crawling events accompanying light-induced isomerization.
article_processing_charge: No
article_type: original
author:
- first_name: Pintu K.
  full_name: Kundu, Pintu K.
  last_name: Kundu
- first_name: Rafal
  full_name: Klajn, Rafal
  id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b
  last_name: Klajn
citation:
  ama: Kundu PK, Klajn R. Watching single molecules move in response to light. <i>ACS
    Nano</i>. 2014;8(12):11913-11916. doi:<a href="https://doi.org/10.1021/nn506656r">10.1021/nn506656r</a>
  apa: Kundu, P. K., &#38; Klajn, R. (2014). Watching single molecules move in response
    to light. <i>ACS Nano</i>. American Chemical Society. <a href="https://doi.org/10.1021/nn506656r">https://doi.org/10.1021/nn506656r</a>
  chicago: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response
    to Light.” <i>ACS Nano</i>. American Chemical Society, 2014. <a href="https://doi.org/10.1021/nn506656r">https://doi.org/10.1021/nn506656r</a>.
  ieee: P. K. Kundu and R. Klajn, “Watching single molecules move in response to light,”
    <i>ACS Nano</i>, vol. 8, no. 12. American Chemical Society, pp. 11913–11916, 2014.
  ista: Kundu PK, Klajn R. 2014. Watching single molecules move in response to light.
    ACS Nano. 8(12), 11913–11916.
  mla: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response
    to Light.” <i>ACS Nano</i>, vol. 8, no. 12, American Chemical Society, 2014, pp.
    11913–16, doi:<a href="https://doi.org/10.1021/nn506656r">10.1021/nn506656r</a>.
  short: P.K. Kundu, R. Klajn, ACS Nano 8 (2014) 11913–11916.
date_created: 2023-08-01T09:45:42Z
date_published: 2014-12-23T00:00:00Z
date_updated: 2024-10-14T12:18:29Z
day: '23'
doi: 10.1021/nn506656r
extern: '1'
external_id:
  pmid:
  - '25474733'
intvolume: '         8'
issue: '12'
keyword:
- General Physics and Astronomy
- General Engineering
- General Materials Science
language:
- iso: eng
month: '12'
oa_version: None
page: 11913-11916
pmid: 1
publication: ACS Nano
publication_identifier:
  eissn:
  - 1936-086X
  issn:
  - 1936-0851
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Watching single molecules move in response to light
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2014'
...
---
OA_type: closed access
_id: '17984'
abstract:
- lang: eng
  text: A direct measurement of the potential energy surface that characterizes individual
    chemical bonds in complex materials has fundamental significance for many disciplines.
    Here, we demonstrate that the energy profile for metallic single-atom contacts
    and single-molecule junctions can be mapped by fitting ambient atomic force microscope
    measurements carried out in the near-equilibrium regime to a physical, but simple,
    functional form. We extract bond energies for junctions formed through metallic
    bonds as well as metal–molecule link bonds from atomic force microscope data and
    find that our results are in excellent quantitative agreement with density functional
    theory based calculations for exemplary junction structures. Furthermore, measurements
    from a large number of junctions can be collapsed to a single, universal force–extension
    curve, thus revealing a surprising degree of similarity in the overall shape of
    the potential surface that governs these chemical bonds. Compared to previous
    studies under ambient conditions where analysis was confined to trends in rupture
    force, our approach significantly expands the quantitative information extracted
    from these measurements, particularly allowing analysis of the trends in bond
    energy directly.
article_processing_charge: No
article_type: original
author:
- first_name: Sriharsha V.
  full_name: Aradhya, Sriharsha V.
  last_name: Aradhya
- first_name: Aileen
  full_name: Nielsen, Aileen
  last_name: Nielsen
- first_name: Mark S.
  full_name: Hybertsen, Mark S.
  last_name: Hybertsen
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Aradhya SV, Nielsen A, Hybertsen MS, Venkataraman L. Quantitative bond energetics
    in atomic-scale junctions. <i>ACS Nano</i>. 2014;8(7):7522-7530. doi:<a href="https://doi.org/10.1021/nn502836e">10.1021/nn502836e</a>
  apa: Aradhya, S. V., Nielsen, A., Hybertsen, M. S., &#38; Venkataraman, L. (2014).
    Quantitative bond energetics in atomic-scale junctions. <i>ACS Nano</i>. American
    Chemical Society. <a href="https://doi.org/10.1021/nn502836e">https://doi.org/10.1021/nn502836e</a>
  chicago: Aradhya, Sriharsha V., Aileen Nielsen, Mark S. Hybertsen, and Latha Venkataraman.
    “Quantitative Bond Energetics in Atomic-Scale Junctions.” <i>ACS Nano</i>. American
    Chemical Society, 2014. <a href="https://doi.org/10.1021/nn502836e">https://doi.org/10.1021/nn502836e</a>.
  ieee: S. V. Aradhya, A. Nielsen, M. S. Hybertsen, and L. Venkataraman, “Quantitative
    bond energetics in atomic-scale junctions,” <i>ACS Nano</i>, vol. 8, no. 7. American
    Chemical Society, pp. 7522–7530, 2014.
  ista: Aradhya SV, Nielsen A, Hybertsen MS, Venkataraman L. 2014. Quantitative bond
    energetics in atomic-scale junctions. ACS Nano. 8(7), 7522–7530.
  mla: Aradhya, Sriharsha V., et al. “Quantitative Bond Energetics in Atomic-Scale
    Junctions.” <i>ACS Nano</i>, vol. 8, no. 7, American Chemical Society, 2014, pp.
    7522–30, doi:<a href="https://doi.org/10.1021/nn502836e">10.1021/nn502836e</a>.
  short: S.V. Aradhya, A. Nielsen, M.S. Hybertsen, L. Venkataraman, ACS Nano 8 (2014)
    7522–7530.
date_created: 2024-09-09T11:07:34Z
date_published: 2014-06-19T00:00:00Z
date_updated: 2025-01-02T14:08:57Z
day: '19'
doi: 10.1021/nn502836e
extern: '1'
external_id:
  pmid:
  - '24945851'
intvolume: '         8'
issue: '7'
language:
- iso: eng
month: '06'
oa_version: None
page: 7522-7530
pmid: 1
publication: ACS Nano
publication_identifier:
  eissn:
  - 1936-086X
  issn:
  - 1936-0851
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Quantitative bond energetics in atomic-scale junctions
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 8
year: '2014'
...
---
OA_type: closed access
_id: '17998'
abstract:
- lang: eng
  text: We measure simultaneously force and conductance of Ag metal point-contacts
    under ambient conditions at room temperature. We observe the formation of contacts
    with a conductance close to 1 G0, the quantum of conductance, which can be attributed
    to a single-atom contact, similar to those formed by Au. We also find two additional
    conductance features at ∼0.4 G0 and ∼1.3 G0, which have been previously ascribed
    to contacts with oxygen contaminations. Here, using a conductance cross-correlation
    technique, we distinguish three different atomic-scale structural motifs and analyze
    their rupture forces and stiffness. Our results allow us to assign the ∼0.4 G0
    conductance feature to an Ag–O–Ag contact and the ∼1.3 G0 feature to an Ag–Ag
    single-atom contact with an oxygen atom in parallel. Utilizing complementary information
    from force and conductance, we thus demonstrate the correlation of conductance
    with the structural evolution at the atomic scale.
article_processing_charge: No
article_type: original
author:
- first_name: Sriharsha V.
  full_name: Aradhya, Sriharsha V.
  last_name: Aradhya
- first_name: Michael
  full_name: Frei, Michael
  last_name: Frei
- first_name: András
  full_name: Halbritter, András
  last_name: Halbritter
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
citation:
  ama: Aradhya SV, Frei M, Halbritter A, Venkataraman L. Correlating structure, conductance,
    and mechanics of silver atomic-scale contacts. <i>ACS Nano</i>. 2013;7(4):3706-3712.
    doi:<a href="https://doi.org/10.1021/nn4007187">10.1021/nn4007187</a>
  apa: Aradhya, S. V., Frei, M., Halbritter, A., &#38; Venkataraman, L. (2013). Correlating
    structure, conductance, and mechanics of silver atomic-scale contacts. <i>ACS
    Nano</i>. American Chemical Society. <a href="https://doi.org/10.1021/nn4007187">https://doi.org/10.1021/nn4007187</a>
  chicago: Aradhya, Sriharsha V., Michael Frei, András Halbritter, and Latha Venkataraman.
    “Correlating Structure, Conductance, and Mechanics of Silver Atomic-Scale Contacts.”
    <i>ACS Nano</i>. American Chemical Society, 2013. <a href="https://doi.org/10.1021/nn4007187">https://doi.org/10.1021/nn4007187</a>.
  ieee: S. V. Aradhya, M. Frei, A. Halbritter, and L. Venkataraman, “Correlating structure,
    conductance, and mechanics of silver atomic-scale contacts,” <i>ACS Nano</i>,
    vol. 7, no. 4. American Chemical Society, pp. 3706–3712, 2013.
  ista: Aradhya SV, Frei M, Halbritter A, Venkataraman L. 2013. Correlating structure,
    conductance, and mechanics of silver atomic-scale contacts. ACS Nano. 7(4), 3706–3712.
  mla: Aradhya, Sriharsha V., et al. “Correlating Structure, Conductance, and Mechanics
    of Silver Atomic-Scale Contacts.” <i>ACS Nano</i>, vol. 7, no. 4, American Chemical
    Society, 2013, pp. 3706–12, doi:<a href="https://doi.org/10.1021/nn4007187">10.1021/nn4007187</a>.
  short: S.V. Aradhya, M. Frei, A. Halbritter, L. Venkataraman, ACS Nano 7 (2013)
    3706–3712.
date_created: 2024-09-09T11:34:27Z
date_published: 2013-03-23T00:00:00Z
date_updated: 2025-01-03T08:07:54Z
day: '23'
doi: 10.1021/nn4007187
extern: '1'
external_id:
  pmid:
  - '23521342'
intvolume: '         7'
issue: '4'
language:
- iso: eng
month: '03'
oa_version: None
page: 3706-3712
pmid: 1
publication: ACS Nano
publication_identifier:
  eissn:
  - 1936-086X
  issn:
  - 1936-0851
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Correlating structure, conductance, and mechanics of silver atomic-scale contacts
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 7
year: '2013'
...
---
OA_type: closed access
_id: '18008'
abstract:
- lang: eng
  text: The break-junction technique is widely used to measure electronic properties
    of nanoscale junctions including metal point-contacts and single-molecule junctions.
    In these measurements, conductance is measured as a function of electrode displacement
    yielding data that is analyzed by constructing conductance histograms to determine
    the most frequently observed conductance values in the nanoscale junctions. However
    much of the rich physics in these measurements is lost in this simple analysis
    technique. Conductance histograms cannot be used to study the statistical relation
    of distinct junction configurations, to distinguish structurally different configurations
    that have similar conductance values, or to obtain information on the relation
    between conductance and junction elongation. Here, we give a detailed introduction
    to a novel statistical analysis method based on the two-dimensional cross-correlation
    histogram (2DCH) analysis of conductance traces and show that this method provides
    new information about the relation of different junction configurations that occur
    during the formation and evolution of metal and single-molecule junctions. We
    first illustrate the different types of correlation effects by using simulated
    conductance traces. We then apply this analysis method to several different experimental
    examples. We show from break-junction measurements of different metal point-contacts
    that in aluminum, the first conductance histogram peak corresponds to two different
    junction structures. In tantalum, we identify the frequent absence of adhesive
    instability. We show that conductance plateaus shift in a correlated manner in
    iron and vanadium junctions. Finally, we highlight the applicability of the correlation
    analysis to single-molecule platinum–CO–platinum and gold–4,4′-bipyridine–gold
    junctions.
article_processing_charge: No
article_type: original
author:
- first_name: Péter
  full_name: Makk, Péter
  last_name: Makk
- first_name: Damian
  full_name: Tomaszewski, Damian
  last_name: Tomaszewski
- first_name: Jan
  full_name: Martinek, Jan
  last_name: Martinek
- first_name: Zoltán
  full_name: Balogh, Zoltán
  last_name: Balogh
- first_name: Szabolcs
  full_name: Csonka, Szabolcs
  last_name: Csonka
- first_name: Maciej
  full_name: Wawrzyniak, Maciej
  last_name: Wawrzyniak
- first_name: Michael
  full_name: Frei, Michael
  last_name: Frei
- first_name: Latha
  full_name: Venkataraman, Latha
  id: 9ebb78a5-cc0d-11ee-8322-fae086a32caf
  last_name: Venkataraman
  orcid: 0000-0002-6957-6089
- first_name: András
  full_name: Halbritter, András
  last_name: Halbritter
citation:
  ama: Makk P, Tomaszewski D, Martinek J, et al. Correlation analysis of atomic and
    single-molecule junction conductance. <i>ACS Nano</i>. 2012;6(4):3411-3423. doi:<a
    href="https://doi.org/10.1021/nn300440f">10.1021/nn300440f</a>
  apa: Makk, P., Tomaszewski, D., Martinek, J., Balogh, Z., Csonka, S., Wawrzyniak,
    M., … Halbritter, A. (2012). Correlation analysis of atomic and single-molecule
    junction conductance. <i>ACS Nano</i>. American Chemical Society. <a href="https://doi.org/10.1021/nn300440f">https://doi.org/10.1021/nn300440f</a>
  chicago: Makk, Péter, Damian Tomaszewski, Jan Martinek, Zoltán Balogh, Szabolcs
    Csonka, Maciej Wawrzyniak, Michael Frei, Latha Venkataraman, and András Halbritter.
    “Correlation Analysis of Atomic and Single-Molecule Junction Conductance.” <i>ACS
    Nano</i>. American Chemical Society, 2012. <a href="https://doi.org/10.1021/nn300440f">https://doi.org/10.1021/nn300440f</a>.
  ieee: P. Makk <i>et al.</i>, “Correlation analysis of atomic and single-molecule
    junction conductance,” <i>ACS Nano</i>, vol. 6, no. 4. American Chemical Society,
    pp. 3411–3423, 2012.
  ista: Makk P, Tomaszewski D, Martinek J, Balogh Z, Csonka S, Wawrzyniak M, Frei
    M, Venkataraman L, Halbritter A. 2012. Correlation analysis of atomic and single-molecule
    junction conductance. ACS Nano. 6(4), 3411–3423.
  mla: Makk, Péter, et al. “Correlation Analysis of Atomic and Single-Molecule Junction
    Conductance.” <i>ACS Nano</i>, vol. 6, no. 4, American Chemical Society, 2012,
    pp. 3411–23, doi:<a href="https://doi.org/10.1021/nn300440f">10.1021/nn300440f</a>.
  short: P. Makk, D. Tomaszewski, J. Martinek, Z. Balogh, S. Csonka, M. Wawrzyniak,
    M. Frei, L. Venkataraman, A. Halbritter, ACS Nano 6 (2012) 3411–3423.
date_created: 2024-09-09T12:29:11Z
date_published: 2012-03-07T00:00:00Z
date_updated: 2025-01-03T09:10:24Z
day: '07'
doi: 10.1021/nn300440f
extern: '1'
external_id:
  pmid:
  - '22397391'
intvolume: '         6'
issue: '4'
language:
- iso: eng
month: '03'
oa_version: None
page: 3411-3423
pmid: 1
publication: ACS Nano
publication_identifier:
  eissn:
  - 1936-086X
  issn:
  - 1936-0851
publication_status: published
publisher: American Chemical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Correlation analysis of atomic and single-molecule junction conductance
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 6
year: '2012'
...