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- Title
Novel Magnetism and Band Gap Tailoring in N-doped CdS:Cr Nanocomposites for Optomagnetic Applications.
- Authors
M., SURYA SEKHAR REDDY; Y. B., KISHORE KUMAR
- Abstract
Nitrogen and chromium co-doped cadmium sulfide nanocomposites (NCps) were successfully synthesized using a simple co-precipitation method (Cpm). To evaluate their structural attributes, X-ray diffraction (XRD) analysis, conducted with X'pert high score plus software, confirmed the composite nature and established their particle size within the nano range, measuring between 1 to 1.6 nm. Further characterization, employing Fourier transform infrared spectroscopy (FTIR) confirms the presence of Cr and N. The energy dispersive X-ray spectroscopy (EDX) provided compelling evidence of the integration of chromium and nitrogen into the CdS host matrix. An interesting outcome of the UV-VIS diffused reflectance spectra (DRS) analysis was the significant blue shift observed in the band gap resulting from the introduction of chromium, accompanied by a Burstein-Moss effect, leading to a red shift as the nitrogen concentration increased. The intense green light emission witnessed in photoluminescence (PL) studies was associated with the trapping of nitrogen and Cr2+ within F-centers. Moreover, vibrating sample magnetometer (VSM) investigations unveiled distinct magnetic behaviors of the nanocomposites, particularly at low magnetic fields. These findings reveal a potential for tailoring band gaps and presenting novel magnetic properties, which could hold substantial promise for applications in optomagnetic and spintronic smart devices.
- Subjects
BAND gaps; MAGNETISM; CHROMIUM isotopes; ENERGY dispersive X-ray spectroscopy; GREEN light; FOURIER transform infrared spectroscopy; REDSHIFT
- Publication
Oriental Journal of Chemistry, 2023, Vol 39, Issue 6, p1599
- ISSN
0970-020X
- Publication type
Article
- DOI
10.13005/ojc/390620