New approach to synthesis of semimagnetic semiconductor nanoparticles

✍ Scribed by A.I. Savchuk; V.I. Fediv; A.G. Voloshchuk; T.A. Savchuk; Yu.Yu. Bacherikov; A. Perrone

• Book ID: 103845051
• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 235 KB
• Volume: 26
• Category: Article
• ISSN: 0928-4931
• DOI: 10.1016/j.msec.2005.09.070

✦ Synopsis

The technique of colloidal chemistry has been applied for synthesis of nonmagnetic CdS and Cd 1Àx Mn x S semimagnetic semiconductor nanocrystals. The Cd 1Àx Mn x S nanocrystals have been synthesized by means of substitution reaction. The performed TEM analysis suggests of spherical shape of nanoparticles for the colloidal Cd 1Àx Mn x S nanoparticles. The optical properties of the obtained nanocomposite solution have been investigated by absorption and emission spectroscopy. Optical spectra demonstrate features which are associated with confinement effect and change of Mn content x in the Cd 1Àx Mn x S nanocrystals. Compositional information have been obtained on the base of the model of weak confinement regime and estimation the energy gap for a given composition of the II 1Àx Mn x VI alloys at room temperature.