Synthesis and characterization of Mn2+ doped ZnS nanocrystals self-assembled in a tight mesoporous structure

Accurate determination of the spin Hamiltonian parameters for Mn2+ ions in cubic ZnS nanocrystals by multifrequency EPR spectra analysis

“…Based on a simple analysis of the X-band spectra, three types of isolated Mn 2+ centers were identified in such samples and tentative values for the g-and A-parameters were reported [16,17]. Later on we have developed a more precise procedure for the determination of the SH parameters of the Mn(I) center localized in the core of the cZnS NCs from the EPR spectra measured at two microwave frequencies.…”

Excitations in doped quantum dot induced by randomly fluctuating confinement potential: Influence of impurity

“…Literature survey reveals that of late there are many detailed investigations on the influence of impurity located at various positions [26e31] in the lattice. The recent excellent experiments of Nistor et al shows the mechanism of such dopant incorporation [32,33] and Sundqvist et al elegantly explains how such incorporations can be controlled [34].…”

Optimal control of a charge qubit in a double quantum dot with a Coulomb impurity

“…The existence of unintentional impurities, which are always present in nanostructured devices, affects seriously the possibility of using these devices as quantum bits. Although the distribution and concentration of impurities in these systems result unknown parameters, there are some recent works that propose the possibility of experimentally control these issues [49,50,51,52]. Impurity doping in semiconductor materials is considered as a useful technology that has been exploited to control optical and electronic properties in different nanodevices.…”