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Recombination Processes in Nanoparticles of II‐Mn‐VI Compounds—Magnetic Resonance Study
Author(s) -
Godlewski Marek,
Yatsunenko Sergiy,
Ivanov Vitaly Yu.
Publication year - 2007
Publication title -
israel journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.908
H-Index - 54
eISSN - 1869-5868
pISSN - 0021-2148
DOI - 10.1560/ijc_46_4_413
Subject(s) - chemistry , electron paramagnetic resonance , ion , photoluminescence , nanoparticle , resonance (particle physics) , relaxation (psychology) , spin (aerodynamics) , recombination , chemical physics , atomic physics , nuclear magnetic resonance , nanotechnology , optoelectronics , psychology , social psychology , biochemistry , physics , materials science , organic chemistry , aerospace engineering , engineering , gene
We apply magnetic resonances (electron spin resonance and optically detected magnetic resonance) for evaluation of efficiency of spin‐dependent interactions between Mn ions and Mn ions and free carriers. These investigations were performed to determine mechanism(s) responsible for the significant shortening of the photoluminescence decay time observed for Mn 2+ intra‐shell emission in nanoparticles of wide band gap II‐VI compounds (ZnS and CdS). We demonstrate high efficiency of spin‐dependent interactions with free ions, which lead to relaxation of spin selection rules for intra‐shell emission.