Transition metal (Ni,Mn) codoped Zn₃P₂ nanoparticles: effect on structural, optical and magnetic properties

Abstract

This work reports the pure matrix and synthesis of Zn(3–(x+y))NixMnyP2 (x = 0.02, y = 0.01, 0.03, 0.05, and 0.07) nanoparticles using the solid-state reaction method. The impact of Ni-Mn codoping on the structural, morphological, chemical identification, optical, photoluminescence, and magnetic properties of Zn3P2 nanoparticles is studied. The structural properties after doping confirm the absence of other phases and synthesized samples had a tetragonal structure. Using SEM with EDAX, the nanoparticles’ surface morphology, and elemental composition are investigated. The nanoparticles have a spherical shape and approximately the expected stoichiometric atomic ratio. The optical band gap of the undoped and codoped nanoparticles is calculated and found the band gap increased with increasing dopant content. The emission peaks show that all emission peaks are in the same wavelength position with effect of dopant level. VSM confirmed the magnetic moment is found to increase with an increase in dopant concentration.

Structural, Optical, and Magnetic Properties of Mn Doped Zn3P2 Diluted Magnetic Semiconductor Nanoparticles

“…Similar results were also observed in Ni-Mn codoped Zn 3 P 2 nanoparticles. 38 The intensity of diffraction peaks reduced on increasing the dopant concentration. The explanation for the drop in intensity might also be linked to stress-induced lattice distortion.…”

“…Similar results were also observed in Ni-Mn codoped Zn 3 P 2 nanoparticles. 38 Additionally, the presence of stress and the incorporation of impurities with different ionic radii into the lattice may also be contributed to the lattice distortion. 54 Morphological studies.-Figure 2 depicts the Mn-doped Zn 3 P 2 (x = 0.02, 0.04, 0.06, and 0.08) nanoparticles in the range of 500 nm, which were subjected to a thermal treatment at a temperature of 500 °C.…”

“…Recently, a similar increase in band gap was observed in Ni-Mn codoped Zn 3 P 2 nanoparticles. 38,57,58 Photoluminescence studies.-The investigation of inherent and extrinsic imperfections in semiconductors was conducted through the utilization of non-destructive photoluminescence (PL) analysis. The present methodology, predicated upon a low-concentration approach, offers comprehensive insights into energy states that are impure and marred by flaws.…”

“…9 Similar emission peaks, ultraviolet (243 and 297 nm), violet (393 nm), and blue emissions (467 and 486 nm) were reported as excitations at 244 nm and 195 nm. 38 However, G.Z. Shen et al 59 examined the PL characteristics of single-crystalline trumpet-shaped zinc phosphide nanostructures, specifically focusing on the broad emission peak centred at 585 nm (2.1 eV).…”

“…We have recently studied the structural, optical, and magnetic properties of transition metal (Ni-Mn) co-doped Zn 3 P 2 nanoparticles using the solid-state reaction method. 38 Malik et al 39 discussed the synthetic methods for the preparation of semiconductor nanoparticles. Based on elements (Mn and Zn), a lot of research is being done to get the materials with the desired functional properties.…”