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 sy nthesized by the microfabrication techniques. Quantum dots of Cd1-xMnxSe (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 Cd1-xMnxSe (x = 0.08) were synthesized with the width of 60-125 nm from the two-dimensional quantum w ells by the electron beam lithography and chemical etching. The optical pro perties and the exciton dynamics of these quantum structures were studied b y the transient phololuminescence spectroscopy. The magneto-optical propert ies of the confined excitons in the quantum dots, the wires and the wells a re discussed, (C) 2000 Elsevier Science B.V. All rights reserved.