DocumentCode :
861123
Title :
Optical and Electron Paramagnetic Resonance Spectroscopies of Mn-Doped PbS Nanocrystals
Author :
Silva, R.S. ; Morais, P.C. ; Sullasi, H.S.L. ; Ayta, W.E.F. ; Qu, Fanyao ; Dantas, N.O.
Author_Institution :
Instituto de Fisica, Brasilia Univ.
Volume :
43
Issue :
6
fYear :
2007
fDate :
6/1/2007 12:00:00 AM
Firstpage :
3124
Lastpage :
3126
Abstract :
Mn-doped PbS nanocrystals (NCs) (Pb1-xMnxS) embedded in glass matrix have been successfully synthesized by means of fusion method. The geometrical morphology and size dispersion of Pb1-xMnxS NCs were studied by atomic force microscopy (AFM). Their magnetic and the optical properties have been investigated using electron paramagnetic resonance (EPR) and optical absorption (OA) measurements. We found that the isolated Mn2+-ions are located on the PbS NC-shell whereas coupled Mn 2+-ions are located on the Pb1-xMnxS NC-core
Keywords :
atomic force microscopy; infrared spectra; lead compounds; manganese compounds; nanostructured materials; paramagnetic resonance; semimagnetic semiconductors; ultraviolet spectra; visible spectra; Pb1-xMnxS; atomic force microscopy; electron paramagnetic resonance spectra; geometrical morphology; nanocrystals; optical spectra; size dispersion; Atom optics; Atomic force microscopy; Atomic measurements; Electron optics; Geometrical optics; Glass; Morphology; Nanocrystals; Paramagnetic resonance; Spectroscopy; Glass; Mn-doped; PbS; quantum dots;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2007.893852
Filename :
4202915
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=861123
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