Transmission channels in the time-energy uncertainty relation approach to molecular conductance: Symmetry rules for the electron transport in molecules

2018 ◽  
Vol 118 (20) ◽  
pp. e25651 ◽  
Author(s):  
Nicolás Ramos-Berdullas ◽  
Sara Gil-Guerrero ◽  
Marcos Mandado
Keyword(s):  
Electron Transport ◽  
Uncertainty Relation ◽  
Transmission Channels ◽  
Molecular Conductance ◽  
Relation Approach ◽  
Symmetry Rules

Environmental Effects on the Single Molecule Conductance of bis(thiahexyl)oligothiophenes

2009 ◽  
Vol 1154 ◽  
Author(s):  
Edmund Leary ◽  
Horst Höbenreich ◽  
Simon J. Higgins ◽  
Harm van Zalinge ◽  
Wolfgang Haiss ◽  
...  
Keyword(s):  
Electron Transport ◽  
Single Molecule ◽  
Environmental Effects ◽  
Electronic Devices ◽  
Molecular Wires ◽  
Water Molecules ◽  
Ambient Water ◽  
Molecular Electronic ◽  
Molecular Conductance ◽  
Non Equilibrium Green’S Function

AbstractSimple alkanedithiols exhibit the same molecular conductance whether measured in air, under vacuum or under liquids of different polarity. Here, we show that the presence of water ‘gates’ the conductance of a family of oligothiophene–containing molecular wires, and that the longer the oligothiophene, the larger is the effect; for the longest example studied, the molecular conductance is over two orders of magnitude larger in the presence of water, an unprecedented result suggesting that ambient water is a crucial factor to be taken into account when measuring single molecule conductances (SMC), or in the design of future molecular electronic devices. Theoretical investigation of electron transport through the molecules, using the ab initio non-equilibrium Green's function (SMEAGOL) method, shows that water molecules interact with the thiophene rings, shifting the transport resonances enough to increase greatly the SMC of the longer, more conjugated examples.

Molecular design of electron transport with orbital rule: toward conductance-decay free molecular junctions

2015 ◽  
Vol 17 (48) ◽  
pp. 32099-32110 ◽  
Author(s):  
Tomofumi Tada ◽  
Kazunari Yoshizawa
Keyword(s):  
Electron Transport ◽  
Molecular Design ◽  
Molecular Junctions ◽  
Frontier Orbitals ◽  
Molecular Conductance

In this study, we report our viewpoint of single molecular conductance in terms of frontier orbitals.

On the Role of Oxygen in the Formation of Electron Transmission Channels in Oligo(Phenylene Vinylene) Quinone Molecular Conductance

2010 ◽  
Vol 114 (28) ◽  
pp. 12341-12345 ◽  
Author(s):  
Nikolai Lebedev ◽  
Igor Griva ◽  
Scott A. Trammell ◽  
Gary S. Kedziora ◽  
Leonard M. Tender ◽  
...  
Keyword(s):  
Phenylene Vinylene ◽  
Electron Transmission ◽  
Transmission Channels ◽  
Molecular Conductance

The role of ligands in electron transport in nanocrystal solids

Nanoscale ◽  
2020 ◽  
Vol 12 (45) ◽  
pp. 23028-23035
Author(s):  
Artem R. Khabibullin ◽  
Alexander L. Efros ◽  
Steven C. Erwin
Keyword(s):  
Electron Transport ◽  
Theoretical Modeling

Theoretical modeling of wavefunction overlap in nanocrystal solids elucidates the important role played by ligands in electron transport.

Economic Significance of Social Capital

2011 ◽  
pp. 46-65 ◽  
Author(s):  
L. Polishchuk ◽  
R. Menyashev
Keyword(s):  
Social Capital ◽  
Collective Action ◽  
Common Good ◽  
Economic Conditions ◽  
Formal Institutions ◽  
Transmission Channels ◽  
Economic Significance ◽  
Bonding And Bridging ◽  
The Impact

The paper deals with economics of social capital which is defined as the capacity of society for collective action in pursuit of common good. Particular attention is paid to the interaction between social capital and formal institutions, and the impact of social capital on government efficiency. Structure of social capital and the dichotomy between its bonding and bridging forms are analyzed. Social capital measurement, its economic payoff, and transmission channels between social capital and economic outcomes are discussed. In the concluding section of the paper we summarize the results of our analysis of the role of social capital in economic conditions and welfare of Russian cities.

Uncertainty relation in broadband laser pulse shaping

2020 ◽  
Author(s):  
Konstantin B. Yushkov ◽  
Vladimir Ya. Molchanov ◽  
E.A. Khazanov
Keyword(s):  
Laser Pulse ◽  
Pulse Shaping ◽  
Uncertainty Relation ◽  
Broadband Laser ◽  
Laser Pulse Shaping
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