Journal ArticleDOI
Structural and optical properties of Mn-doped CdS thin films prepared by ion implantation
S. Chandramohan,Aloke Kanjilal,J.K. Tripathi,Sachindra Nath Sarangi,R. Sathyamoorthy,Tapobrata Som +5 more
TLDR
In this article, structural and optical properties of Mn-doped CdS thin films prepared by 190 keV Mn-ion implantation at different temperatures were investigated and shown to exhibit a new band in their photoluminescence spectra at 2.22 eV which originates from the d-d transition of tetrahedrally coordinated Mn2+ ions.Abstract:
We report on structural and optical properties of Mn-doped CdS thin films prepared by 190 keV Mn-ion implantation at different temperatures. Mn-ion implantation in the fluence range of 1×1013–1×1016 ions cm−2 does not lead to the formation of any secondary phase. However, it induces structural disorder, causing a decrease in the optical band gap. This is addressed on the basis of band tailing due to creation of localized energy states and Urbach energy calculations. Mn-doped samples exhibit a new band in their photoluminescence spectra at 2.22 eV, which originates from the d-d (T41→A61) transition of tetrahedrally coordinated Mn2+ ions.read more
Citations
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Journal ArticleDOI
Recent developments and perspectives in CdS-based photocatalysts for water splitting
Jamal Abdul Nasir,Jamal Abdul Nasir,Zia ur Rehman,Syed Niaz Ali Shah,Azam Khan,Ian S. Butler,C. Richard A. Catlow,C. Richard A. Catlow +7 more
TL;DR: In this article, a review highlights work over the past several years to improve the photocatalytic efficiency and stability of CdS for hydrogen (H2) production from water.
Journal ArticleDOI
Synthesis, characterization and photoluminescence studies of Mn doped ZnS nanoparticles
TL;DR: In this article, the synthesis, characterization and photoluminescence (PL) studies of Mn doped ZnS nanoparticles prepared by chemical precipitation method using mercaptoethanol as a capping agent were reported.
Journal ArticleDOI
Room temperature ferromagnetism and white light emissive CdS:Cr nanoparticles synthesized by chemical co-precipitation method
TL;DR: In this paper, the average particle size calculated from band gap values is in good agreement with the TEM study calculation and it is around 4-5 nm, whereas for CdS:Cr nanoparticles, a broad emission band with a maximum at similar to 587 nm is observed.
Journal ArticleDOI
Structural, optical and magnetic studies on non-aqueous synthesized CdS:Mn nanomaterials
TL;DR: In this article, a cubic zinc blende structure of CdS:Mn as primary phase and cubic structured α-MnS as secondary phase was revealed by X-ray diffraction.
Journal ArticleDOI
A comprehensive study of opto-electrical and nonlinear properties of Cu@CdS thin films for optoelectronics
TL;DR: In this paper, the formation of hexagonal phase CdS films with good crystallinity was confirmed by vibrational spectroscopy analysis, which showed the homogeneous presence of Cu in final film and the optical transparency of fabricated films was noticed in range of 60 to 80%.
References
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Diluted magnetic semiconductors
TL;DR: In this paper, the physical properties of diluted magnetic semiconductors (DMS) of the type AII1−xMnxBVI (e.g., Cd1−mnxSe, Hg 1−mnsTe) were reviewed.
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Microstructural parameters from X-ray diffraction peak broadening
TL;DR: Theoretical size and strain profile functions are given by the minimum number of parameters required by physics and are compared with TEM results as mentioned in this paper, which provides crystallite size, size distribution and dislocation structure.
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Advances in wide bandgap materials for semiconductor spintronics
Stephen J. Pearton,Cammy R. Abernathy,David P. Norton,Arthur F. Hebard,Yun Daniel Park,Lynn A. Boatner,John D. Budai +6 more
TL;DR: In this article, the authors summarize recent progress in dilute magnetic semiconductors (DMS) such as (Ga, Mn)N, (Ga and Mn)P, (Zn, Mn), O, and SiGeN2 exhibiting room temperature ferromagnetic properties.
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Crystallographically oriented Co and Ni nanocrystals inside ZnO formed by ion implantation and postannealing
Shengqiang Zhou,Kay Potzger,J. von Borany,R. Grötzschel,Wolfgang Skorupa,Manfred Helm,Jürgen Fassbender +6 more
TL;DR: In this paper, the structural and magnetic properties of Co-and Ni-implanted ZnO single crystals were investigated and it was shown that Co or Ni nanocrystals (NCs) are the major contribution of the measured ferromagnetic properties.
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Luminescence in colloidal Mn2+-doped semiconductor nanocrystals
TL;DR: In this paper, a brief overview is provided, focusing on Mn2+-doped II-VI semiconductor nanocrystals prepared by direct chemical synthesis and capped with coordinating surface ligands.