Fabrication and optical study of quantum dots, quantum wires and quantum wells of II-VI diluted magnetic semiconductors

Nanometer-scale structures of II-VI diluted magnetic semiconductors were synthesized by the microfabrication techniques. Quantum dots of Cd(1-x)Mn(x)Se (x = 0.03) with diameters of 9.0-9.4 nm were grown by the self-organized mode in the molecular beam epitaxy. Quantum wires of Cd(1-x)Mn(x)Se (x = 0.08) were synthesized with the width of 60-125 nm from the two-dimensional quantum wells by the electron beam lithography and chemical etching. The optical properties and the exciton dynamics of these quantum structures were studied by the transient phololuminescence spectroscopy. The magneto-optical properties of the confined excitons in the quantum dots, the wires and the wells are discussed, (C) 2000 Elsevier Science B.V. All rights reserved.