Results 221 to 230 of about 374,258 (265)

Charge-Transfer Excitons in DNA

The Journal of Physical Chemistry B, 2008
There have been a number of theoretical treatments of excitons in DNA, most neglecting both the intrachain and interchain wavefunction overlaps of the electron and hole, treating them as Frenkel excitons. Recently, the importance of the intrachain and interchain coupling has been highlighted. Experiments have shown that in (dA)n oligomers and in duplex
E M, Conwell, P M, McLaughlin, S M, Bloch   +2 more
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A Fundamental Comparison of Incomplete Charge Transfer in Charge Transfer Devices

Bell System Technical Journal, 1973
Using a small-signal analysis, we present a general comparison of the more important contributions to the incomplete transfer of charge in the following charge transfer devices: (i) the polyphase charge-coupled device and the IGFET bucket-brigade shift register, where individual charge transfers are single-step processes, and (ii) the two-phase charge ...
C. N. Berglund, K. K. Thornber
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Charge Transfer Doping of Silicon

Physical Review Letters, 2014
We demonstrate a novel doping mechanism of silicon, namely n-type transfer doping by adsorbed organic cobaltocene (CoCp2*) molecules. The amount of transferred charge as a function of coverage is monitored by following the ensuing band bending via surface sensitive core-level photoelectron spectroscopy.
Rietwyk, K., Smets, Y., Bashouti, M., Christiansen, S., Schenk, A., Tadich, A., Edmonds, M., Ristein, J., Ley, L., Pakes, C.   +9 more
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Charge Transfer in Charge-Coupled Devices

Journal of Applied Physics, 1971
The transfer characteristics of charge-coupled devices have been investigated theoretically and simulated experimentally. The transport of minority carriers along the Si–SiO2 interface can be described by a diffusion equation where the effective diffusion coefficient is composed of two terms representing the drift and the diffusion currents.
Choong-Ki Kim, Martin Lenzlinger
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Development in charge transfer theory

Journal of Electroanalytical Chemistry, 1985
Abstract Basic problems of chemistry at interfaces are connected with the exploration of elementary processes of charge transfer. Multistep and chemical bond formation processes involved in such phenomena have been treated in terms of partial charge transfer models.
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Incomplete transfer in charge-transfer devices

IEEE Journal of Solid-State Circuits, 1973
The authors present a general analysis of incomplete charge transfer in charge transfer devices. By using a lumped-charge model to characterize the dynamics of the charge transfer, they calculate /spl alpha/, the small-signal coefficient of incomplete transfer, in terms of single-device small-signal parameters.
C.N. Berglund, K.K. Thornber
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Recent developments of charge injection and charge transfer in DNA

Chemical Communications, 2002
The question of whether and how electrons migrate through DNA was a matter of controversial discussion over the last ten years. Today, there is no doubt that long distance charge migration through DNA exists and most scientists explain this process by a multistep hopping mechanism.
Giese B, Biland A
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Charge transfer in the living matrix

Journal of Bodywork and Movement Therapies, 2009
The living matrix is defined as the continuous molecular fabric of the organism, consisting of fascia, the other connective tissues, extracellular matrices, integrins, cytoskeletons, nuclear matrices and DNA. The extracellular, cellular and nuclear biopolymers or ground substances constitute a body-wide reservoir of charge that can maintain electrical ...
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Charge localization and charge transfer in the Bebq2 monomer and dimer

Journal of Molecular Modeling, 2014
The geometrical structure and electronic properties of bis(10-hydroxybenzo[h]quinolinato)beryllium (Bebq2) molecule and its dimer both in the neutral and in the positively and negatively charged states were studied using quantum-chemical calculations.
Andrei A, Safonov, Alexander A, Bagaturyants   +1 more
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Charge transfer and martensitic nucleation

Il Nuovo Cimento D, 1987
The microscopic interpretation of phase stability in alloys undergoing thermoelastic martensitic transformation involves a difficult nucleation problem. The strong dependence of the critical temperature for the onset of martensite on composition requires the introduction of nonclassical defective nuclei, of dynamic nature, to obtain reasonable ...
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