Spin dynamics in semiconductor nanocrystals

Excited-State Dynamics in Colloidal Semiconductor Nanocrystals

Colloidal semiconductor nanocrystals have attracted continuous worldwide interest over the last three decades owing to their remarkable and unique size- and shape-, dependent properties. The colloidal nature of these nanomaterials allows one to take full advantage of nanoscale effects to tailor their optoelectronic and physical-chemical properties, yielding materials that combine size-, shape-,...

Spin dynamics in low-dimensional semiconductor structures

Résumé / Streszczenie Abstract This work is devoted to the studies of spin dynamics of magnetic Mn ions embedded in low-dimensional CdTe-based nanostructures. The particular emphasis is focused on the system of single CdTe quantum dots with single Mn ions, which give an insight into unperturbed interactions of magnetic ion with its semiconductor environment. A method of all-optical manipulation...

Exciton Spin Dynamics in Semiconductor Quantum Wells

1.1 Two-Dimensional exciton fine structure The spin properties of excitons in nanostructures are determined by their fine structure. Before analysing the exciton spin dynamics, we give first a brief description of the exciton states in quantum wells. We will mainly focus in this review on GaAs or InGaAs quantum well which are model systems. For more details, the reader is referred to the review...

Semiconductor Nanocrystals

Core/Shell semiconductor nanocrystals.

Colloidal core/shell nanocrystals contain at least two semiconductor materials in an onionlike structure. The possibility to tune the basic optical properties of the core nanocrystals, for example, their fluorescence wavelength, quantum yield, and lifetime, by growing an epitaxial-type shell of another semiconductor has fueled significant progress on the chemical synthesis of these systems. In ...