Spectral Clustering to Analyze the Hidden Events in Single-Molecule Break Junctions

2021 ◽  
Vol 125 (6) ◽  
pp. 3623-3630 ◽  
Author(s):  
Luchun Lin ◽  
Chun Tang ◽  
Gang Dong ◽  
Zhixin Chen ◽  
Zhichao Pan ◽  
...  
Keyword(s):  
Single Molecule ◽  
Spectral Clustering ◽  
Break Junctions

Measurement and control of detailed electronic properties in a single molecule break junction

2014 ◽  
Vol 174 ◽  
pp. 91-104 ◽  
Author(s):  
Kun Wang ◽  
Joseph Hamill ◽  
Jianfeng Zhou ◽  
Cunlan Guo ◽  
Bingqian Xu
Keyword(s):  
Data Analysis ◽  
Molecular Electronics ◽  
Single Molecule ◽  
Molecular Orbitals ◽  
Break Junction ◽  
Break Junctions ◽  
Single Molecule Level ◽  
Analysis Techniques ◽  
Future Design ◽  
Molecule Junction

The lack of detailed experimental controls has been one of the major obstacles hindering progress in molecular electronics. While large fluctuations have been occurring in the experimental data, specific details, related mechanisms, and data analysis techniques are in high demand to promote our physical understanding at the single-molecule level. A series of modulations we recently developed, based on traditional scanning probe microscopy break junctions (SPMBJs), have helped to discover significant properties in detail which are hidden in the contact interfaces of a single-molecule break junction (SMBJ). For example, in the past we have shown that the correlated force and conductance changes under the saw tooth modulation and stretch–hold mode of PZT movement revealed inherent differences in the contact geometries of a molecular junction. In this paper, using a bias-modulated SPMBJ and utilizing emerging data analysis techniques, we report on the measurement of the altered alignment of the HOMO of benzene molecules with changing the anchoring group which coupled the molecule to metal electrodes. Further calculations based on Landauer fitting and transition voltage spectroscopy (TVS) demonstrated the effects of modulated bias on the location of the frontier molecular orbitals. Understanding the alignment of the molecular orbitals with the Fermi level of the electrodes is essential for understanding the behaviour of SMBJs and for the future design of more complex devices. With these modulations and analysis techniques, fruitful information has been found about the nature of the metal–molecule junction, providing us insightful clues towards the next step for in-depth study.

Fast sensitive amplifier for two-probe conductance measurements in single molecule break junctions

2017 ◽  
Vol 88 (3) ◽  
pp. 033904 ◽  
Author(s):  
Tyler K. Johnson ◽  
Jeffrey A. Ivie ◽  
Jason Jaruvang ◽  
Oliver L. A. Monti
Keyword(s):  
Single Molecule ◽  
Break Junctions

Three-Terminal Single-Molecule Junctions Formed by Mechanically Controllable Break Junctions with Side Gating

Nano Letters ◽  
2013 ◽  
Vol 13 (6) ◽  
pp. 2809-2813 ◽  
Author(s):  
Dong Xiang ◽  
Hyunhak Jeong ◽  
Dongku Kim ◽  
Takhee Lee ◽  
Yongjin Cheng ◽  
...  
Keyword(s):  
Single Molecule ◽  
Break Junctions ◽  
Single Molecule Junctions

Measuring single molecule conductance with break junctions

2006 ◽  
Vol 131 ◽  
pp. 145-154 ◽  
Author(s):  
Jin He ◽  
Otto Sankey ◽  
Myeong Lee ◽  
Nongjian Tao ◽  
Xiulan Li ◽  
...  
Keyword(s):  
Single Molecule ◽  
Break Junctions

scholarly journals Lithographic mechanical break junctions for single-molecule measurements in vacuum: possibilities and limitations

2008 ◽  
Vol 10 (6) ◽  
pp. 065008 ◽  
Author(s):  
Christian A Martin ◽  
Dapeng Ding ◽  
Herre S J van der Zant ◽  
Jan M van Ruitenbeek
Keyword(s):  
Single Molecule ◽  
Break Junctions

scholarly journals Single-Molecule Break Junctions Based on a Perylene-Diimide Cyano-Functionalized (PDI8-CN2) Derivative

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Riccardo Frisenda ◽  
Loredana Parlato ◽  
Mario Barra ◽  
Herre S.J. van der Zant ◽  
Antonio Cassinese
Keyword(s):  
Single Molecule ◽  
Perylene Diimide ◽  
Break Junctions

scholarly journals Insulator-protected mechanically controlled break junctions for measuring single-molecule conductance in aqueous environments

2016 ◽  
Vol 109 (1) ◽  
pp. 013102 ◽  
Author(s):  
N. Muthusubramanian ◽  
E. Galan ◽  
C. Maity ◽  
R. Eelkema ◽  
F. C. Grozema ◽  
...  
Keyword(s):  
Single Molecule ◽  
Break Junctions ◽  
Aqueous Environments

Large negative differential conductance in single-molecule break junctions

2014 ◽  
Vol 9 (10) ◽  
pp. 830-834 ◽  
Author(s):  
Mickael L. Perrin ◽  
Riccardo Frisenda ◽  
Max Koole ◽  
Johannes S. Seldenthuis ◽  
Jose A. Celis Gil ◽  
...  
Keyword(s):  
Single Molecule ◽  
Differential Conductance ◽  
Negative Differential Conductance ◽  
Break Junctions

scholarly journals Alternative types of molecule-decorated atomic chains in Au–CO–Au single-molecule junctions

2015 ◽  
Vol 6 ◽  
pp. 1369-1376 ◽  
Author(s):  
Zoltán Balogh ◽  
Péter Makk ◽  
András Halbritter
Keyword(s):  
Single Molecule ◽  
Theoretical Calculations ◽  
Formation Processes ◽  
Break Junctions ◽  
Molecular Precursor ◽  
Fano Interference ◽  
Single Molecule Junctions ◽  
Atomic Chains ◽  
Formation And Evolution ◽  
Length Analysis

We investigate the formation and evolution of Au–CO single-molecule break junctions. The conductance histogram exhibits two distinct molecular configurations, which are further investigated by a combined statistical analysis. According to conditional histogram and correlation analysis these molecular configurations show strong anticorrelations with each other and with pure Au monoatomic junctions and atomic chains. We identify molecular precursor configurations with somewhat higher conductance, which are formed prior to single-molecule junctions. According to detailed length analysis two distinct types of molecule-affected chain-formation processes are observed, and we compare these results to former theoretical calculations considering bridge- and atop-type molecular configurations where the latter has reduced conductance due to destructive Fano interference.

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