scholarly journals Characterization and control of charge transfer in a tunnel junction

2017 ◽  
Vol 254 (3) ◽  
pp. 1600619 ◽  
Author(s):  
Julien Gabelli ◽  
Karl Thibault ◽  
Gabriel Gasse ◽  
Christian Lupien ◽  
Bertrand Reulet
Keyword(s):  
Charge Transfer ◽  
Tunnel Junction ◽  
And Control

Molecular Tunnel Junction-Controlled High-Order Charge Transfer Plasmon and Fano Resonances

ACS Nano ◽  
2018 ◽  
Vol 12 (12) ◽  
pp. 12541-12550 ◽  
Author(s):  
Ximin Cui ◽  
Feng Qin ◽  
Yunhe Lai ◽  
Hao Wang ◽  
Lei Shao ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Tunnel Junction ◽  
High Order ◽  
Fano Resonances

Attosecond coherent manipulation of electrons in tunneling microscopy

Science ◽  
2019 ◽  
Vol 367 (6476) ◽  
pp. 411-415 ◽  
Author(s):  
M. Garg ◽  
K. Kern
Keyword(s):  
Tunnel Junction ◽  
Coherent Control ◽  
Scanning Tunneling ◽  
Tunneling Microscopy ◽  
Optical Pulses ◽  
Nanoelectronic Devices ◽  
Electronic Current ◽  
And Control ◽  
Coherent Manipulation ◽  
Manipulation And Control

Nanoelectronic devices operating in the quantum regime require coherent manipulation and control over electrons at atomic length and time scales. We demonstrate coherent control over electrons in a tunnel junction of a scanning tunneling microscope by means of precise tuning of the carrier-envelope phase of two-cycle long (<6-femtosecond) optical pulses. We explore photon and field-driven tunneling, two different regimes of interaction of optical pulses with the tunnel junction, and demonstrate a transition from one regime to the other. Our results show that it is possible to induce, track, and control electronic current at atomic scales with subfemtosecond resolution, providing a route to develop petahertz coherent nanoelectronics and microscopy.

Elucidation and Control of an Intramolecular Charge Transfer Property of Fucoxanthin by a Modification of Its Polyene Chain Length

2014 ◽  
Vol 5 (5) ◽  
pp. 792-797 ◽  
Author(s):  
Daisuke Kosumi ◽  
Takayuki Kajikawa ◽  
Satoshi Okumura ◽  
Mitsuru Sugisaki ◽  
Kazuhiko Sakaguchi ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Chain Length ◽  
Intramolecular Charge Transfer ◽  
Polyene Chain ◽  
Transfer Property ◽  
And Control

scholarly journals Charge Transfer Complexes of 1,3,6-Trinitro-9,10-phenanthrenequinone with Polycyclic Aromatic Compounds

Molecules ◽  
2021 ◽  
Vol 26 (21) ◽  
pp. 6391
Author(s):  
Roman Linko ◽  
Michael Ryabov ◽  
Pavel Strashnov ◽  
Pavel Dorovatovskii ◽  
Victor Khrustalev ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Density Functional ◽  
Energy Levels ◽  
Orbital Energy ◽  
Charge Transfer Complexes ◽  
X Ray Diffraction ◽  
Functional Theory ◽  
Donor And Acceptor ◽  
Polycyclic Aromatic ◽  
And Control

Understanding the interactions of organic donor and acceptor molecules in binary associates is crucial for design and control of their functions. Herein, we carried out a theoretical study on the properties of charge transfer complexes of 1,3,6-trinitro-9,10-phenanthrenequinone (PQ) with 23 aromatic π-electron donors. Density functional theory (DFT) was employed to obtain geometries, frontier orbital energy levels and amounts of charge transfer in the ground and first excited states. For the most effective donors, namely, dibenzotetrathiafulvalene, pentacene, tetrathiafulvalene, 5,10-dimethylphenazine, and tetramethyl-p-phenylenediamine, the amount of charge transfer in the ground state was shown to be 0.134−0.240 e−. Further, a novel charge transfer complex of PQ with anthracene was isolated in crystalline form and its molecular and crystal structure elucidated by single-crystal synchrotron X-ray diffraction.

INDUCED POLARIZATION: A PRELIMINARY STUDY OF ITS CHEMICAL BASIS

Geophysics ◽  
1977 ◽  
Vol 42 (4) ◽  
pp. 788-803 ◽  
Author(s):  
Yed Angoran ◽  
Theodore R. Madden
Keyword(s):  
Charge Transfer ◽  
Transfer Reaction ◽  
Induced Polarization ◽  
Solution Chemistry ◽  
Rate Theory ◽  
Charge Transfer Reaction ◽  
Sulfide Ions ◽  
Open Question ◽  
And Control

An investigation of the effect that the in‐situ solution chemistry would have on the induced‐polarization phenomena was carried out by means of laboratory studies of the electrode impedances of metallic and sulfide minerals. Reaction rate theory shows that this effect is largely due to the impedance associated with the diffusion of the ions involved in the charge transfer reaction to and from the reaction sites. This impedance is inversely proportional to the concentration of the reacting ions and inversely proportional to the square root of the frequency. Impedance measurements were made with different concentrations of a variety of ions in order to identify the active ion species. The ion concentrations were controlled by doping and by excursions in Eh and pH. These measurements showed that cupric and sulfide ions are active in the charge transfer reaction and control the electrode impedances whenever their concentrations exceed [Formula: see text]. None of the other common anions and cations tested appeared active. A background impedance level was found which was relatively insensitive to the solution chemistries tested. These impedances varied somewhat with the type of mineral tested, but generally ran between 2000 and [Formula: see text] at 1 radian/sec. The identity of these background reactions is still an open question.

Effect of TiO2particles on normal and resonance Raman spectra of coumarin 343: a theoretical investigation

2015 ◽  
Vol 17 (16) ◽  
pp. 10910-10918 ◽  
Author(s):  
Linzhi Yang ◽  
Wenpeng Wu ◽  
Yi Zhao
Keyword(s):  
Electron Transfer ◽  
Excited State ◽  
Charge Transfer ◽  
Raman Spectra ◽  
Resonance Raman ◽  
Interfacial Structures ◽  
Locally Excited State ◽  
Resonance Raman Spectra ◽  
And Control ◽  
Transfer State

Both the normal Raman spectra (NRS) and resonance Raman spectra (RRS) can be used to figure out the isomers and their interfacial structures. Furthermore, the differences in RRS between the locally excited state and the charge transfer state of C343–TiO2are helpful to understand and control the electron transfer at the interface.

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