The electron ground state is characterized only by quantum number m = 0 in the whole range of magnetic field induction when the electric field intensity is bigger than certain critical magnitude. This effect vanishes when the electric field intensity increases and if the magnetic field is parallel to the electric one. It is shown that this state is successively formed by the states with m ≤ 0 (Aharonov-Bohm effect) when the magnetic field induction increases. The formation of the electron ground state under the influence of the electric and magnetic field is researched. The Schödinger equation is solved using the method of expansion of the electron wave function on the basis of wave functions in the nanostructure without the external fields. The parallel and perpendicular electric and magnetic fields are considered. The electron energy spectrum in inverted core-shell quantum dot driven by magnetic and electric fields is studied. The crystal structure also gradually evolved from polytwistane to more zinc-blende. Later stage MSCs exhibited narrow photoinduced absorptions at lower-energy region like QDs. Early stage MSCs showed active inter-state conversions in the excited states, which is characteristics of small molecules. As the conversion proceeded, evolution from uni-molecule-like to QD-like characters was observed. Similarly, F360-InP:Zn MSCs could be converted to F408-InP:Zn MSCs, then to F393-InP:Zn MSCs. 386-InP MSCs could be converted to F360-InP:Cl MSCs, then to F399-InP:Cl MSCs. Alternatively, each series of MSCs could be prepared by sequential conversions. All the MSCs could be directly synthesized from conventional molecular precursors. We report syntheses for two families of heterogeneous-atom-incorporated InP MSCs that have chlorine or zinc atoms. Magic-sized clusters (MSCs) can be isolated as intermediates in quantum dot (QD) synthesis, and they provide pivotal clues in understanding QD growth mechanisms. This method will be important for the optimization and development of luminescent nanothermometers. The work presented here is the first study that incorporates all of these practical issues to accurately calculate the uncertainty of luminescent nanothermometers. Our predictions match the temperature uncertainties that we extract from repeated measurements, over a wide temperature range (303-473 K), for different CCD readout settings, and for different background levels. After first determining the noise characteristics of our instrumentation, we show how the uncertainty of a temperature measurement can be predicted quantitatively. Here, we demonstrate how the precision of a temperature measurement with luminescent nanocrystals depends not only on the temperature sensitivity of the nanocrystals but also on their luminescence strength compared to measurement noise and background signal. Although the comparison of luminescent materials based on their temperature sensitivity is convenient, this parameter gives an incomplete description of the potential performance of the materials in applications. Researchers have continuously developed new materials aiming for the highest sensitivity of luminescence to temperature. We have also investigated the radius-dependent changes in binding energies and lifetimes of the structures and the comparative results have been discussed in a detail manner.Materials with temperature-dependent luminescence can be used as local thermometers when incorporated in, for example, a biological environment or chemical reactor. The transition energy shifts of double and triple excitons with respect to the single exciton have been calculated as a function of the core radius and we have shown that the energy shifts are inversely proportional with the radius. We have observed that the core-radius dependent transition energy variations of triexcitons are higher when compared with single- and bi-excitonic systems. Absorption peaks or transition energies of the triexciton system are well separated from those of single- and bi-exciton systems. We have demonstrated that the optical properties of triexciton systems are remarkably different from the single and biexciton systems. In calculations, the exchange-correlation effects between identical particles have been taken into account in the frame of the local density approximation. The electronic structure has been determined by solving of the Poisson–Schrödinger equations self-consistently. In the study, we aim to investigate the electronic and optical properties of single excitons, biexcions and triexcitons in a CdSe/ZnS core/shell quantum dot nanocrystal.
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