Dynamics of Light Emission in CdMnS Nanoparticles

• Authors: M. Godlewski , S. Yatsunenko , K. Drozdowicz-Tomsia , E. Goldys , M. Phillips , P. Klar , W. Heimbrodt
• Languages of publication: EN

Abstracts

EN

We demonstrate coexistence of slow and fast components of photoluminescence decay of the Mn^{2+} intra-shell emission in nanoparticles of CdMnS. We explain the observed decrease in PL lifetime of the Mn^{2+} intra-shell transition by high efficiency of spin dependent magnetic interactions between localized spins of Mn^{2+} ions and free carriers. This mechanism is enhanced in nanostructures, but it is also present in bulk samples.

Keywords

EN

81.07.Wx; 78.55.Et; 78.47.+p; 71.55.Gs; 76.30.Fc; 76.70.Hb

Discipline

• 81.07.Wx: Nanopowders
• 76.30.Fc: Iron group (3d) ions and impurities (Ti-Cu)
• 78.55.Et: II-VI semiconductors
• 71.55.Gs: II-VI semiconductors
• 76.70.Hb: Optically detected magnetic resonance (ODMR)

• Journal: Acta Physica Polonica A
• Year: 2005
• Volume: 108
• Issue: 4
• Pages: 681-688

Dates

published

2005-10

received

2005-06-04

Contributors

author

M. Godlewski

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

S. Yatsunenko

• Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland

author

K. Drozdowicz-Tomsia

• Div. of Information and Communication Sciences, Macquarie University, Sydney, Australia

author

E. Goldys

• Div. of Information and Communication Sciences, Macquarie University, Sydney, Australia

author

M. Phillips

• Microstructural Analysis Unit, UTS, Sydney, Australia

author

P. Klar

• Dept. of Physics and Materials Sciences Center, Philipps-University of Marburg, Renthof 5, 35032 Marburg, Germany

author

W. Heimbrodt

• Dept. of Physics and Materials Sciences Center, Philipps-University of Marburg, Renthof 5, 35032 Marburg, Germany

References

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Identifiers

DOI

10.12693/APhysPolA.108.681