Header menu link for other important links
X
Modifications in structural and optical properties of Mn-ion implanted CdS thin films
S. Chandramohan, , T. Strache, J.K. Tripathi, S.N. Sarangi, R. Sathyamoorthy, T. Som
Published in Elsevier
2009
Volume: 256
   
Issue: 2
Pages: 465 - 468
Abstract
In this paper, we report on modifications in structural and optical properties of CdS thin films due to 190 keV Mn-ion implantation at 573 K. Mn-ion implantation induces disorder in the lattice, but does not lead to the formation of any secondary phase, either in the form of metallic clusters or impurity complexes. The optical band gap was found to decrease with increasing ion fluence. This is explained on the basis of band tailing due to the creation of localized energy states generated by structural disorder. Enhancement in the Raman scattering intensity has been attributed to the enhancement in the surface roughness due to increasing ion fluence. Mn-doped samples exhibit a new band in their photoluminescence spectra at 2.22 eV, which originates from the d-d ( 4 T 1 → 6 A 1 ) transition of tetrahedrally coordinated Mn 2+ ions. © 2009 Elsevier B.V.
About the journal
Published in Elsevier
Open Access
Impact factor
N/A