scholarly journals Electronic transport through single-molecule oligophenyl-diethynyl junctions with direct gold - carbon bonds formed at low temperature

2021 ◽  
Author(s):  
Gautam Mitra ◽  
Vincent Delmas ◽  
Hassan Al Sabea ◽  
Lucie Norel ◽  
Olivier GALANGAU ◽  
...  
Keyword(s):  
Low Temperature ◽  
Single Molecule ◽  
Electronic Transport ◽  
Break Junction ◽  
Transport Study ◽  
Carbon Bonds ◽  
Single Molecule Junctions

We report on the first systematic transport study of alkynyl-ended oligophenyl-diethynyl (OPA) single-molecule junctions with direct Au--C anchoring scheme at low temperature using the mechanically controlled break junction technique. Through...

Electronic transport, transition-voltage spectroscopy, and the Fano effect in single molecule junctions composed of a biphenyl molecule attached to metallic and semiconducting carbon nanotube electrodes

2014 ◽  
Vol 16 (36) ◽  
pp. 19602-19607 ◽  
Author(s):  
Carlos Alberto Brito da Silva Júnior ◽  
José Fernando Pereira Leal ◽  
Vicente Ferrer Pureza Aleixo ◽  
Felipe A. Pinheiro ◽  
Jordan Del Nero
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Single Molecule ◽  
Electronic Transport ◽  
Fano Effect ◽  
Single Molecule Junctions ◽  
Transition Voltage ◽  
Transport Transition ◽  
Transition Voltage Spectroscopy

We investigate electronic transport in semiconductor–molecule–metal junctions consisting of a biphenyl molecule attached to a p-doped semiconductor and metallic carbon nanotubes.

scholarly journals Photo-induced carbocation-enhanced charge transport in single-molecule junctions

2020 ◽  
Vol 11 (23) ◽  
pp. 6026-6030
Author(s):  
Zhongwu Bei ◽  
Yuan Huang ◽  
Yangwei Chen ◽  
Yiping Cao ◽  
Jin Li
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Charge Transport ◽  
Single Molecule ◽  
Scanning Tunneling ◽  
Break Junction ◽  
Tunneling Microscopy ◽  
Single Molecule Junctions

We report the first example of photo-induced carbocation-enhanced charge transport in triphenylmethane junctions using the scanning tunneling microscopy break junction (STM-BJ) technique.

scholarly journals Single‐Molecule Junctions: An On‐Chip Break Junction System for Combined Single‐Molecule Conductance and Raman Spectroscopies (Adv. Funct. Mater. 28/2020)

2020 ◽  
Vol 30 (28) ◽  
pp. 2070188
Author(s):  
Hyunhak Jeong ◽  
Haipeng B. Li ◽  
Lucas Domulevicz ◽  
Joshua Hihath
Keyword(s):  
Single Molecule ◽  
Break Junction ◽  
Single Molecule Junctions ◽  
On Chip

Break junction under electrochemical gating: testbed for single-molecule electronics

2015 ◽  
Vol 44 (4) ◽  
pp. 889-901 ◽  
Author(s):  
Cancan Huang ◽  
Alexander V. Rudnev ◽  
Wenjing Hong ◽  
Thomas Wandlowski
Keyword(s):  
Single Molecule ◽  
Break Junction ◽  
Single Molecule Electronics ◽  
Single Molecule Junctions ◽  
Recent Developments ◽  
Electrochemical Gating

This tutorial review highlights recent developments using break junction techniques, and emphasizes the concept of “electrochemical gating” on single-molecule junctions.

Thermoelectricity at the Organic-Inorganic Interface

2010 ◽  
Author(s):  
Shannon Yee ◽  
Jonathan Malen ◽  
Pramod Reddy ◽  
Rachel Segalman ◽  
Arun Majumdar
Keyword(s):  
Single Molecule ◽  
Electronic Transport ◽  
Energy Transport ◽  
Chemical Potential ◽  
Surface States ◽  
Scanning Tunneling ◽  
The Past ◽  
Single Molecule Junctions ◽  
Electronic Conductance ◽  
Inorganic Components

Electronic transport in molecular junctions has been studied through measurements of junction thermopower to evaluate the feasibility of thermoelectric (TE) energy generation using organic-inorganic hybrid materials. Energy transport and conversion in these junctions are heavily influenced by transport interactions at the metal-molecule interface. At this interface the discrete molecular orbitals overlap with continuum electronic states in the inorganic electrodes to create unique energy landscapes that cannot be realized in the organic or inorganic components alone. Over the past decade, scanning probe microscopes have been used to study the electronic conductance of single-molecule junctions[1–5]. Recently, we conducted measurements of junction thermopower using a modified scanning tunneling microscope (STM)[6]. Through our investigations, we have determined: (i) how the addition of molecular substituent groups can be used to predictably tune the TE properties of phenylenedithiol (PDT) junctions[7], (ii) how the length, molecular backbone, and end groups affect junction thermopower[8], and (iii) where electronic transport variations originate[9]. Furthermore, we have recently found that large (10 fold) TE enhancement can be achieved by effectively altering a (noble) metal junction using fullerenes (i.e., C60, PCBM, and C70). We associate the enhancement with the alignment of the frontier orbitals of the fullerene to the chemical potential of the inorganic electrodes. We further found that the thermopower can be predictably tuned by varying the work function of the contacts. This yields considerable promise for altering the surface states at interfaces for enhanced electronic and thermal transport. This paper highlights our work using thermopower as a probe for electronic transport, and reports preliminary results of TE conversion in fullerene-metal junctions.

scholarly journals Enhanced coupling through π-stacking in imidazole-based molecular junctions

2019 ◽  
Vol 10 (43) ◽  
pp. 9998-10002 ◽  
Author(s):  
Tianren Fu ◽  
Shanelle Smith ◽  
María Camarasa-Gómez ◽  
Xiaofang Yu ◽  
Jiayi Xue ◽  
...  
Keyword(s):  
Density Functional Theory ◽  
Single Molecule ◽  
Scanning Tunneling Microscope ◽  
Density Functional ◽  
Molecular Junctions ◽  
Scanning Tunneling ◽  
Break Junction ◽  
Functional Theory ◽  
Tunneling Microscope ◽  
Single Molecule Junctions

We demonstrate that imidazole based π–π stacked dimers form strong and efficient conductance pathways in single-molecule junctions using the scanning-tunneling microscope-break junction (STM-BJ) technique and density functional theory-based calculations.

Single-molecule junctions beyond electronic transport

2013 ◽  
Vol 8 (6) ◽  
pp. 399-410 ◽  
Author(s):  
Sriharsha V. Aradhya ◽  
Latha Venkataraman
Keyword(s):  
Single Molecule ◽  
Electronic Transport ◽  
Single Molecule Junctions

scholarly journals A versatile low-temperature setup for the electrical characterization of single-molecule junctions

2011 ◽  
Vol 82 (5) ◽  
pp. 053907 ◽  
Author(s):  
Christian A. Martin ◽  
Roel H. M. Smit ◽  
Ruud van Egmond ◽  
Herre S. J. van der Zant ◽  
Jan M. van Ruitenbeek
Keyword(s):  
Low Temperature ◽  
Single Molecule ◽  
Electrical Characterization ◽  
Single Molecule Junctions

Importance of Direct Metal−π Coupling in Electronic Transport Through Conjugated Single-Molecule Junctions

2012 ◽  
Vol 134 (50) ◽  
pp. 20440-20445 ◽  
Author(s):  
Jeffrey S. Meisner ◽  
Seokhoon Ahn ◽  
Sriharsha V. Aradhya ◽  
Markrete Krikorian ◽  
Radha Parameswaran ◽  
...  
Keyword(s):  
Single Molecule ◽  
Electronic Transport ◽  
Single Molecule Junctions
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