Sentence examples for impurity centers from inspiring English sources

We have considered Gaussian impurity centers.

We have considered repulsive Gaussian impurity centers.

The absorbance of the samples is depended on several factors, such as band gap, oxygen deficiency, surface roughness and impurity centers.

There are three mechanisms for the dissociation of excitons to produce free carriers: interaction with (1) phonons, (2) impurity centers, and (3) excitons.

Temperature dependent mobility also exhibiting a Conwell Weisskopf relationship to temperatures below 250 K, indicating that the dominant scattering sites are ionized impurity centers.

The aim is to increase the efficiency of the luminescence by increasing the overlap of the electron and hole wavefunctions, to tune the wavelength of the emission by forming alloys, molecules, and clusters, or to induce recombination at impurity centers.

where Vimp x0,y0)=Vimp(0)=V0e−γ[(x−x0)2 + (y−y0)2] with γ>0 and V0>0 for repulsive impurity, and (x0,y0) denotes the position of the impurity center.

The electron position in the well can be modulated by the impurity center and will sensitively change the Rashba spin-orbit splitting energy.

The situation is radically changed when the effective mass of the impurity center (hole) is comparable to the mass of the electron.

Thus, the Coulomb interaction between the impurity center and the electron increases significantly (up to four times in the ground state) [42].

It is known that in the case of Kane's dispersion law, the binding energy of the impurity center turns out more than that in the case of the parabolic law [40, 41].