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Research Article Open Access

Synthesis and Properties of (Mn, Ni) co-doped ZnS nanoparticles

 

 

B. Sreenivasulu, S. Venkatramana Reddy*, P. Venkateswara Reddy

 

*Department of Physics, Sri Venkateswara University, Tirupati 517502, A.P. India.

Adv. Mater. Proc., 2018, 3 (9), 566-569

DOI: 10.5185/amp.2018/1417

Publication Date (Web):05 November 2018

Copyright © IAAM-VBRI Press

Abstract


Abstract

Pure and (Mn, Ni) co-doped ZnS nano particles are synthesized by co-precipitation method using Poly Vinyl Pyrrolidone (PVP) as stabilizer. Powder XRD results exhibit cubic blended structure for all samples. The average crystallite sizes observed to be between around 2-3 nm. Uneven changes of crystal structure of concerned nanoparticles are confirmed by the Transmission Electron Microscopy (TEM) studies. The crystalline sizes obtained from TEM (3-5 nm) agree well those of XRD data. The SEM micro graphs of (Mn, Ni) co-doped nanoparticles result in agglomeration with spherical shape. The EDAX Spectra reveal that in the chemical composition of the prepared samples, the co-doped elements are incorporated into ZnS lattice. Photoluminescence (PL) has been studied at 306 nm wavelength. Pure sample exhibits sharp peaks at 438 nm, 450 nm and 466 nm. The (Mn, Ni) co-doped powders exhibit slightly less intense peaks. The magnetic measurements reveal that the co-doped nanoparticles exhibit Room Temperature Ferromagnetism (RTFM). Copyright © 2018 VBRI Press.

Keywords


ZnS nanoparticles, XRD, PL, SEM with EDAX, TEM, HR-TEM and VSM.