Journal
APPLIED PHYSICS LETTERS
Volume 81, Issue 3, Pages 535-537Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1494468
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We have studied luminescence spectrum and dynamics of Mn-doped CdS nanocrystals fabricated by sequential Cd+, S+, and Mn+ ion implantation into Al2O3 matrices. The photoluminescence (PL) due to the Mn2+ intra-3d transition is clearly observed near 570 nm in Mn-doped CdS nanocrystals. The PL excitation spectrum of the Mn2+ luminescence in Mn-doped CdS nanocrystals is similar to the optical absorption spectrum and PL excitation spectrum of undoped CdS nanocrystals. Our spectroscopic data show that ion-beam synthesis is one of the methods of the fabrication of doped semiconductor nanocrystals. The luminescence mechanism of Mn-doped CdS nanocrystals will be discussed. (C) 2002 American Institute of Physics.
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