Facile synthesis of Ni-doped ZnS-CdS composite and their magnetic and photoluminescence properties

Madhavi, J and Prasad, V and Reddy, KR and Venkata Reddy, C and Raghu, AV (2021) Facile synthesis of Ni-doped ZnS-CdS composite and their magnetic and photoluminescence properties. In: Journal of Environmental Chemical Engineering, 9 (6).

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Abstract

ZnS and CdS are promising semiconductors due to their excellent optical and catalyst properties. But, its low photon efficiency and high photo corrosion limit their practical applications. Heterojunctions construction and designing advanced structures with a suitable transition metal ions doping are active methods to improve the properties of semiconductors. In this work, Ni-doped ZnS-CdS hybrid composite was successfully synthesized using a simple chemical precipitation technique. X-ray diffraction, FT-IR spectroscopy, TEM, UV-Vis spectroscopy, PL, and VSM measurements were used to investigate the structural, morphological, optical, and magnetic properties of Ni-doped ZnS-CdS hybrid composite. The XRD analysis confirmed the incorporation of Ni2+ ions into the host lattice and the calculated average crystallite size is ~15.5 nm. The optical and EPR analysis confirmed that the dopant (Ni2+) ions occupy octahedral sites in the host lattice. From the CIE chromaticity diagram, it is revealed that the hybrid composite displayed green light emission. The presence of Zn-S and Cd-S vibrational bands is confirmed from the FT-IR spectrum. Room temperature ferromagnetism was observed in the Ni-doped ZnS-CdS hybrid composite. © 2021 Elsevier Ltd

Item Type:	Journal Article
Publication:	Journal of Environmental Chemical Engineering
Publisher:	Elsevier Ltd
Additional Information:	The copyright for this article belongs to Elsevier Ltd.
Keywords:	Cadmium sulfide; Corrosion; Crystallite size; Diluted magnetic semiconductors; Ferromagnetism; Heterojunctions; II-VI semiconductors; Magnetic properties; Manganese compounds; Metal ions; Nanomagnetics; Nickel compounds; Optical lattices; Optical properties; Photoluminescence; Photoluminescence spectroscopy; Precipitation (chemical); Semiconductor doping; Spectrum analysis; Synthesis (chemical); Transition metals; Ultraviolet visible spectroscopy; Wide band gap semiconductors, Catalyst properties; Doped nanoparticles; Doped ZnS; Facile synthesis; Host lattice; Hybrid composites; Ni-doped; Optical-; Photoluminescence properties; Photon efficiency, Zinc sulfide
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	20 Feb 2023 06:15
Last Modified:	20 Feb 2023 06:15
URI:	https://eprints.iisc.ac.in/id/eprint/80383

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