Abstract
Mn2+-doped ZnS nanoparticles of average size 2.5±0.3 nm have been studied and characterized in the dopant concentration range 0.1–0.3% using XRD, EPR, XPS and photoluminescence methods. The experimental results obtained from these studies indicate that the doping of Mn2+ occurs primarily at the T d sites at low dopant concentration, causing the4T1(G) → 6A1(S) transition to take place in the host lattice; the observed decrease in the intensity of photoluminescence at high dopant concentration is due to the setting in of the strong Mn2+–Mn2+ interaction arising from cluster formation at the highly distorted sites near the particle surface.
Similar content being viewed by others
References
Abragam A. and Bleaney B. (1970). Electron Paramagnetic Resonance of Transition Ions. Clarendon Press, Oxford
Bleaney B. (1951). Hyperfine structure in paramagnetic salts and nuclear alignment. Philos. Mag. 42: 441–458
Cullity B.D. (1956.). Elements of X-ray Diffraction. Addison-Wesley Publishing Company, Inc., Reading, MA, 99
Gonzalez Beermann P.A., McGarvey B.R., Muralidharan S. and Sung R.C.W. (2004). EPR spectra of Mn2+-doped ZnS quantum dots. Chem. Mater. 16: 915–918
Hershberger W.D. and Leifer H.N. (1952). Paramagnetic resonance in phosphors. Phys. Rev. 88: 714–720
Matarrese L.M. and Kikuchi C.J. (1956). Paramagnetic resonance absorption of Mn2+ in single crystals of zincblende. Phys. Chem. Solids 1: 117–127
Pohl U.W. and Gumlich H.E. (1989). Optical transitions of different Mn-ion pairs in ZnS. Phys. Rev. B 40: 1194–1201
Qadri S.B., Skelton E.F., Hsu D., Dinsmore A.D., Yang J., Gray H.F. and Ratna B.R. (1999). Size-induced transition-temperature reduction in nanoparticles of ZnS. Phys. Rev. B 60: 9191–9193
Soo Y.L., Ming Z.H., Huang S.W., Kao Y.H., Bhargava R.N. and Gallagher D. (1994). Local structures around Mn luminescent centers in Mn-doped nanocrystals of ZnS. Phys. Rev. B 50: 7602–7607
Title R.S. (1963). Electron paramagnetic resonance of Cr+, Mn2+ and Fe3+ in cubic ZnS. Phys. Rev. 131: 623–627
Yeom T.H., Lee Y.H., Hahn T.S., Oh M.H. and Choh S.H. (1996). Electron-paramagnetic resonance study of Mn2+ luminescence center in ZnS:Mn powder and thin films. J. Appl. Phys. 79(2): 1004–1007
Author information
Authors and Affiliations
Corresponding authors
Additional information
An erratum to this article can be found at http://dx.doi.org/10.1007/s11051-006-9129-y
Rights and permissions
About this article
Cite this article
Beermann, P.A.G., McGarvey, B.R., Skadtchenko, B.O. et al. Cationic Substitution Sites in Mn2+-doped ZnS Nanoparticles. J Nanopart Res 8, 235–241 (2006). https://doi.org/10.1007/s11051-005-7525-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11051-005-7525-3