Electronic conduction during the formation stages of a single-molecule junction

Single-molecule junctions are versatile test beds for electronic transport at the atomic scale. However, not much is known about the early formation steps of such junctions. Here, we study the electronic transport properties of premature junction configurations before the realization of a single-mol...

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Main Authors: Atindra Nath Pal, Tal Klein, Ayelet Vilan, Oren Tal
Format: Article
Language:English
Published: Beilstein-Institut 2018-05-01
Series:Beilstein Journal of Nanotechnology
Subjects:
Online Access:https://doi.org/10.3762/bjnano.9.138
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author Atindra Nath Pal
Tal Klein
Ayelet Vilan
Oren Tal
author_facet Atindra Nath Pal
Tal Klein
Ayelet Vilan
Oren Tal
author_sort Atindra Nath Pal
collection DOAJ
description Single-molecule junctions are versatile test beds for electronic transport at the atomic scale. However, not much is known about the early formation steps of such junctions. Here, we study the electronic transport properties of premature junction configurations before the realization of a single-molecule bridge based on vanadocene molecules and silver electrodes. With the aid of conductance measurements, inelastic electron spectroscopy and shot noise analysis, we identify the formation of a single-molecule junction in parallel to a single-atom junction and examine the interplay between these two conductance pathways. Furthermore, the role of this structure in the formation of single-molecule junctions is studied. Our findings reveal the conductance and structural properties of premature molecular junction configurations and uncover the different scenarios in which a single-molecule junction is formed. Future control over such processes may pave the way for directed formation of preferred junction structures.
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spelling doaj.art-d072281f18654630a5082612316505e42022-12-21T21:59:49ZengBeilstein-InstitutBeilstein Journal of Nanotechnology2190-42862018-05-01911471147710.3762/bjnano.9.1382190-4286-9-138Electronic conduction during the formation stages of a single-molecule junctionAtindra Nath Pal0Tal Klein1Ayelet Vilan2Oren Tal3Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 7610001, Israel,Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 7610001, Israel,Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 7610001, Israel,Department of Chemical and Biological Physics, Weizmann Institute of Science, Rehovot 7610001, Israel,Single-molecule junctions are versatile test beds for electronic transport at the atomic scale. However, not much is known about the early formation steps of such junctions. Here, we study the electronic transport properties of premature junction configurations before the realization of a single-molecule bridge based on vanadocene molecules and silver electrodes. With the aid of conductance measurements, inelastic electron spectroscopy and shot noise analysis, we identify the formation of a single-molecule junction in parallel to a single-atom junction and examine the interplay between these two conductance pathways. Furthermore, the role of this structure in the formation of single-molecule junctions is studied. Our findings reveal the conductance and structural properties of premature molecular junction configurations and uncover the different scenarios in which a single-molecule junction is formed. Future control over such processes may pave the way for directed formation of preferred junction structures.https://doi.org/10.3762/bjnano.9.138break junctionelectron–vibration interactionselectronic transportinelastic electron tunneling spectroscopymolecular junctionmolecular vibrationquantum interferenceshot noise
spellingShingle Atindra Nath Pal
Tal Klein
Ayelet Vilan
Oren Tal
Electronic conduction during the formation stages of a single-molecule junction
Beilstein Journal of Nanotechnology
break junction
electron–vibration interactions
electronic transport
inelastic electron tunneling spectroscopy
molecular junction
molecular vibration
quantum interference
shot noise
title Electronic conduction during the formation stages of a single-molecule junction
title_full Electronic conduction during the formation stages of a single-molecule junction
title_fullStr Electronic conduction during the formation stages of a single-molecule junction
title_full_unstemmed Electronic conduction during the formation stages of a single-molecule junction
title_short Electronic conduction during the formation stages of a single-molecule junction
title_sort electronic conduction during the formation stages of a single molecule junction
topic break junction
electron–vibration interactions
electronic transport
inelastic electron tunneling spectroscopy
molecular junction
molecular vibration
quantum interference
shot noise
url https://doi.org/10.3762/bjnano.9.138
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AT talklein electronicconductionduringtheformationstagesofasinglemoleculejunction
AT ayeletvilan electronicconductionduringtheformationstagesofasinglemoleculejunction
AT orental electronicconductionduringtheformationstagesofasinglemoleculejunction