Cross polarization effect of donor-acceptor group on a potential single-molecule transistor

2014 ◽  
Vol 27 (11) ◽  
pp. 834-840
Author(s):  
Yu-Mo. Zhang ◽  
Xiaojun Wang ◽  
Weiran Zhang ◽  
Wen Li ◽  
Bing Yang ◽  
...  
Keyword(s):  
Single Molecule ◽  
Polarization Effect ◽  
Cross Polarization ◽  
Acceptor Group ◽  
Donor Acceptor ◽  
Single Molecule Transistor

Transmission of Elegant Laguerre-Gaussian beams at a dielectric interface - numerical simulations

2009 ◽  
Vol 57 (2) ◽  
pp. 181-188 ◽  
Author(s):  
W. Szabelak ◽  
W. Nasalski
Keyword(s):  
Numerical Simulations ◽  
Total Internal Reflection ◽  
Polarization Effect ◽  
Internal Reflection ◽  
Gaussian Beams ◽  
Cross Polarization ◽  
Dielectric Interface ◽  
Theoretical Predictions ◽  
Critical Incidence

Transmission of Elegant Laguerre-Gaussian beams at a dielectric interface - numerical simulations Behaviour of Laguerre-Gaussian beams impinged at a dielectric interface under distinct angles is discussed. For different incident angles the beams interact with the interface differently. Two ranges of incident angles, specified by a position of a spectral cone of beam field and related to a cross-polarization effect, are analyzed. Boundary between these two ranges is defined. Cases of critical incidence and total internal reflection are also discussed. Paraxial beams near the lower paraxial limit are considered. Theoretical predictions are confirmed by numerical simulations.

Single-molecule transistors

2015 ◽  
Vol 44 (4) ◽  
pp. 902-919 ◽  
Author(s):  
Mickael L. Perrin ◽  
Enrique Burzurí ◽  
Herre S. J. van der Zant
Keyword(s):  
Electric Field ◽  
Single Molecule ◽  
Gate Electrode ◽  
Single Molecule Transistor

Artist impression of a single-molecule transistor, where a molecule is connected to the source and the drain electrodes. The red lines illustrated the electric field caused by the gate electrode, located below.

A single-molecule transistor in silicon

2014 ◽  
Author(s):  
M. Fernando Gonzalez-Zalba ◽  
Andre Saraiva ◽  
Maria J. Calderon ◽  
Dominik Heiss ◽  
Belita Koiller ◽  
...  
Keyword(s):  
Single Molecule ◽  
Single Molecule Transistor

Strategic design of thiophene-fused nickel dithiolene derivatives for efficient NLO response

2018 ◽  
Vol 20 (28) ◽  
pp. 19007-19016 ◽  
Author(s):  
Manoj Majumder ◽  
Anirban Misra
Keyword(s):  
Energy Gap ◽  
First Hyperpolarizability ◽  
Lumo Energy ◽  
Strategic Design ◽  
Nlo Response ◽  
Acceptor Group ◽  
Donor Acceptor ◽  
Homo Lumo

The zwitterionic donor–acceptor group significantly reduces the HOMO–LUMO energy gap resulting in an enormous increase in the first hyperpolarizability values.

Single-molecule transistor fabrication by self-aligned lithography and in situ molecular assembly

2006 ◽  
Vol 83 (4-9) ◽  
pp. 1706-1709 ◽  
Author(s):  
J. Tang ◽  
E.P. De Poortere ◽  
J.E. Klare ◽  
C. Nuckolls ◽  
S.J. Wind
Keyword(s):  
Single Molecule ◽  
Molecular Assembly ◽  
Transistor Fabrication ◽  
Single Molecule Transistor

scholarly journals Donor-Acceptor Substituted Benzo-, Naphtho- and Phenanthro-Fused Norbornadienes

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 322 ◽  
Author(s):  
Mads Mansø ◽  
Lorette Fernandez ◽  
Zhihang Wang ◽  
Kasper Moth-Poulsen ◽  
Mogens Brøndsted Nielsen
Keyword(s):  
Visible Region ◽  
Energy Difference ◽  
Sonogashira Coupling ◽  
Solar Thermal Energy ◽  
Absorption Properties ◽  
Structural Modifications ◽  
Acceptor Group ◽  
Donor And Acceptor ◽  
Donor Acceptor ◽  
Selection Of

The photochromic norbornadiene/quadricyclane (NBD/QC) couple has found interest as a molecular solar thermal energy (MOST) system for storage of solar energy. To increase the energy difference between the two isomers, we present here the synthesis of a selection of benzo-fused NBD derivatives that contain an aromatic unit, benzene, naphthalene or phenanthrene, fused to one of the NBD double bonds, while the carbon atoms of the other double bond are functionalized with donor and acceptor groups. The synthesis protocols involve functionalization of benzo-fused NBDs with bromo/chloro substituents followed by a subjection of these intermediates to a cyanation reaction (introducing a cyano acceptor group) followed by a Sonogashira coupling (introducing an arylethynyl donor group, -C≡CC6H4NMe2 or -C≡CC6H4OMe). While the derivatives have good absorption properties in the visible region (redshifted relative to parent system) in the context of MOST applications, they lack the ability to undergo NBD-to-QC photoisomerization, even in the presence of a photosensitizer. It seems that loss of aromaticity of the fused aromatics is too significant to allow photoisomerization to occur. The concept of destroying aromaticity of a neighboring moiety as a way to enhance the energy density of the NBD/QC couple thus needs further structural modifications, in the quest for optimum MOST systems.

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