scholarly journals Ab initiocalculation of the binding energy of impurities in semiconductors: Application to Si nanowires

2010 ◽  
Vol 81 (16) ◽  
Author(s):  
Y. M. Niquet ◽  
L. Genovese ◽  
C. Delerue ◽  
T. Deutsch
Keyword(s):  
Binding Energy ◽  
Si Nanowires ◽  
Impurities In Semiconductors

scholarly journals BINDING ENERGIES OF HYDROGEN-LIKE IMPURITIES IN A SEMICONDUCTOR IN INTENSE TERAHERTZ LASER FIELDS

2003 ◽  
Vol 17 (12) ◽  
pp. 2487-2496 ◽  
Author(s):  
J. L. NIE ◽  
W. XU ◽  
L. B. LIN
Keyword(s):  
Laser Radiation ◽  
Binding Energy ◽  
Radiation Intensity ◽  
Theoretical Study ◽  
Numerical Results ◽  
Binding Energies ◽  
Thz Radiation ◽  
Radiation Frequency ◽  
Impurities In Semiconductors ◽  
Linearly Polarized

We present a detailed theoretical study of the influence of linearly polarized intense terahertz (THz) laser radiation on energy states of hydrogen-like impurities in semiconductors. The dependence of the binding energy for ground (1s) and first excited (2s) states, E1s and E2s, on the intensity and the frequency of the THz radiation has been examined for a GaAs-based system. It is found that E1s, E2s and E2s-E1s decrease with increasing radiation intensity or with decreasing radiation frequency, which implies that an intense THz field can enhance ionization of dopants in semiconductors. Our analytical and numerical results show that one of the most important results obtained by A. L. A. Fonseca et al. [Phys. Stat. Sol. (b)186, K57 (1994)] is incorrect.

Intense laser field effects on the binding energy of impurities in semiconductors

2007 ◽  
Vol 75 (7) ◽  
Author(s):  
F. M. S. Lima ◽  
M. A. Amato ◽  
L. S. F. Olavo ◽  
O. A. C. Nunes ◽  
A. L. A. Fonseca ◽  
...  
Keyword(s):  
Binding Energy ◽  
Laser Field ◽  
Intense Laser ◽  
Intense Laser Field ◽  
Field Effects ◽  
Impurities In Semiconductors

Controlled modulation of the binding energy of impurity states in a quantum-well system

1996 ◽  
Vol 166 (4) ◽  
pp. 447-448 ◽  
Author(s):  
Vladimir I. Belyavskii ◽  
Yurii V. Kopaev ◽  
N.V. Kornyakov
Keyword(s):  
Binding Energy ◽  
Quantum Well ◽  
Impurity States

Excitonic quasimolecules containing of two quantum dots

2016 ◽  
pp. 4024-4028 ◽  
Author(s):  
Sergey I. Pokutnyi ◽  
Wlodzimierz Salejda
Keyword(s):  
Quantum Dots ◽  
Binding Energy ◽  
Exchange Interaction ◽  
Coulomb Interaction ◽  
Silicate Glass ◽  
Glass Matrix ◽  
Silicate Glass Matrix

The possibility of occurrence of the excitonic  quasimolecule formed of spatially separated electrons and holes in a nanosystem that consists  of  CuO quantum dots synthesized in a silicate glass matrix. It is shown that the major contribution to the excitonic quasimolecule binding energy is made by the energy of the exchange interaction of electrons with holes and this contribution is much more substantial than the contribution of the energy of Coulomb interaction between the electrons and holes.

Destabilizing the Structural Integrity of SARS-CoV2 Receptor Proteins by Curcumin Along with Hydroxychloroquine: An Insilco Approach for a Combination Therapy

2020 ◽  
Author(s):  
Akhileshwar Srivastava ◽  
Divya Singh
Keyword(s):  
Binding Energy ◽  
Combination Therapy ◽  
Receptor Binding ◽  
Structural Integrity ◽  
Binding Domain ◽  
Receptor Binding Domain ◽  
Receptor Proteins ◽  
Main Protease ◽  
The Stability ◽  
Therapeutic Activities

Presently, an emerging disease (COVID-19) has been spreading across the world due to coronavirus (SARS-CoV2). For treatment of SARS-CoV2 infection, currently hydroxychloroquine has been suggested by researchers, but it has not been found enough effective against this virus. The present study based on in silico approaches was designed to enhance the therapeutic activities of hydroxychloroquine by using curcumin as an adjunct drug against SARS-CoV2 receptor proteins: main-protease and S1 receptor binding domain (RBD). The webserver (ANCHOR) showed the higher protein stability for both receptors with disordered score (<0.5). The molecular docking analysis revealed that the binding energy (-24.58 kcal/mol) of hydroxychloroquine was higher than curcumin (-20.47 kcal/mol) for receptor main-protease, whereas binding energy of curcumin (<a>-38.84</a> kcal/mol) had greater than hydroxychloroquine<a> (-35.87</a> kcal/mol) in case of S1 receptor binding domain. Therefore, this study suggested that the curcumin could be used as combination therapy along with hydroxychloroquine for disrupting the stability of SARS-CoV2 receptor proteins

SIZE-DEPENDENT EFFECTS IN ATOMIC CLUSTERS

2020 ◽  
Author(s):  
A. S. Sharipov ◽  
◽  
B. I. Loukhovitski ◽  
Keyword(s):  
Binding Energy ◽  
Physical Properties ◽  
Size Dependence ◽  
Atomic Clusters ◽  
Energy Collision ◽  
Size Dependent

The size-dependence of different physical properties of atomic clusters (by the example of binding energy, collision diameter, and static isotropic polarizability) is discussed.

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