Charge Transport in Strongly Coupled Molecular Junctions: “In-Phase” and “Out-of-Phase” Contribution to Electron Tunneling

2011 ◽  
Vol 115 (35) ◽  
pp. 17564-17573 ◽  
Author(s):  
Partha Pratim Pal ◽  
Ranjit Pati
Keyword(s):  
Charge Transport ◽  
Electron Tunneling ◽  
Molecular Junctions ◽  
Strongly Coupled

scholarly journals Nonlinear Charge Transport in Redox Molecular Junctions: A Marcus Perspective

ACS Nano ◽  
2011 ◽  
Vol 5 (8) ◽  
pp. 6669-6685 ◽  
Author(s):  
Agostino Migliore ◽  
Abraham Nitzan
Keyword(s):  
Charge Transport ◽  
Molecular Junctions

Transition between Nonresonant and Resonant Charge Transport in Molecular Junctions

Nano Letters ◽  
2021 ◽  
Vol 21 (19) ◽  
pp. 8340-8347
Author(s):  
Songsong Li ◽  
Hao Yu ◽  
Jialing Li ◽  
Nicholas Angello ◽  
Edward R. Jira ◽  
...  
Keyword(s):  
Charge Transport ◽  
Molecular Junctions

Photostimulated Near-Resonant Charge Transport over 60 nm in Carbon-Based Molecular Junctions

2020 ◽  
Vol 142 (36) ◽  
pp. 15420-15430 ◽  
Author(s):  
Shailendra K. Saxena ◽  
Ushula M. Tefashe ◽  
Richard L. McCreery
Keyword(s):  
Charge Transport ◽  
Molecular Junctions ◽  
Carbon Based

Charge Transport in Three-Terminal Molecular Junctions Incorporating Sulfur-End-Functionalized Tercyclohexylidene Spacers

2006 ◽  
Vol 45 (16) ◽  
pp. 2540-2542 ◽  
Author(s):  
Yann-Vaï Kervennic ◽  
Jos M. Thijssen ◽  
Daniel Vanmaekelbergh ◽  
Reza Dabirian ◽  
Leonardus W. Jenneskens ◽  
...  
Keyword(s):  
Charge Transport ◽  
Molecular Junctions

Temperature-Dependent Charge Transport of Large-Area Molecular Junctions with PEDOT:PSS Electrodes

2020 ◽  
Vol 12 (3) ◽  
pp. 333-336
Author(s):  
Jungmoon Lim ◽  
Gahyun Ahn ◽  
Inho Jeong ◽  
Hyunwook Song
Keyword(s):  
Charge Transport ◽  
Annealing Temperature ◽  
Molecular Junctions ◽  
Electrical Characteristics ◽  
Large Area ◽  
Temperature Dependent ◽  
Interfacial Contact ◽  
End Groups ◽  
Backbone Structure ◽  
Dependent Transport

We report on the temperature-dependent transport behaviors of large-area molecular junctions fabricated with poly-(3,4-ethylene-dioxythiophene) stabilized with polystyrene sulphonic acid (PEDOT:PSS) interlayer electrodes and the archetypal benzenethiol molecules. In this study, we investigated two different benzenethiol molecules: 4-methylbenzenethiol (MBT) and 1,4-benzenedithiol (BDT), which have the identical backbone structure but different top end-groups. The charge transport through the molecular junctions was dominated by distinct interfacial contact properties between the PEDOT:PSS electrodes and the component molecules. We also observed that the electrical characteristics of the MBT junctions are influenced by the PEDOT grain size, particularly depending on the annealing temperature.

scholarly journals High electronic couplings of single mesitylene molecular junctions

2015 ◽  
Vol 6 ◽  
pp. 2431-2437 ◽  
Author(s):  
Yuki Komoto ◽  
Shintaro Fujii ◽  
Tomoaki Nishino ◽  
Manabu Kiguchi
Keyword(s):  
Charge Transport ◽  
Channel Model ◽  
Single Channel ◽  
Molecular Junctions ◽  
Liquid Environment ◽  
Resonant Tunnelling ◽  
Current Voltage ◽  
Electronic Conductance ◽  
Current Voltage Characteristics ◽  
High Conductance

We report on an experimental analysis of the charge transport properties of single mesitylene (1,3,5-trimethylbenzene) molecular junctions. The electronic conductance and the current–voltage characteristics of mesitylene molecules wired into Au electrodes were measured by a scanning tunnelling microscopy-based break-junction method at room temperature in a liquid environment. We found the molecular junctions exhibited two distinct conductance states with high conductance values of ca. 10−1 G 0 and of more than 10−3 G 0 (G 0 = 2e 2/h) in the electronic conductance measurements. We further performed a statistical analysis of the current–voltage characteristics of the molecular junctions in the two states. Within a single channel resonant tunnelling model, we obtained electronic couplings in the molecular junctions by fitting the current–voltage characteristics to the single channel model. The origin of the high conductance was attributed to experimentally obtained large electronic couplings of the direct π-bonded molecular junctions (ca. 0.15 eV). Based on analysis of the stretch length of the molecular junctions and the large electronic couplings obtained from the I–V analysis, we proposed two structural models, in which (i) mesitylene binds to the Au electrode perpendicular to the charge transport direction and (ii) mesitylene has tilted from the perpendicular orientation.

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