Enhanced dielectric stability and coercivity of band gap tuned Ba–Al Co-doped bismuth ferrite: An experimental and DFT+U investigation

Comparative study of structural, optical, and photocatalytic properties of ZnO synthesized by chemical coprecipitation and modified sol–gel methods

“…NPs produced by both methods were crystalline hexagonal, which is evident from the peaks of the XRD of Figure 2. The crystallite size calculated by Scherrer's formula of ZnO NPs produced by the modified sol–gel method was 28.4 nm, compared with 24.2 nm for the chemical coprecipitation method 15,16 . Micro‐strain calculated by W‐H plot in both the methods was quite similar, 0.82 × 10 −3 for the modified sol–gel method and 0.87 × 10 −3 for the chemical coprecipitation method.…”

“…The crystallite size calculated by Scherrer's formula of ZnO NPs produced by the modified sol-gel method was 28.4 nm, compared with 24.2 nm for the chemical coprecipitation method. 15,16 Micro-strain calculated by W-H plot in both the methods was quite similar, 0.82 Â 10 À3 for the modified sol-gel method and 0.87 Â 10 À3 for the chemical coprecipitation method. ZnO NPs produced by the chemical coprecipitation method showed great crystallinity of 90% compared with the modified sol-gel method, which was around 80%.…”

Cationic and oxygen defect modulation for tailoring the bandgap and room temperature ferromagnetism of CuO via multiple d-block cations

“…In line with earlier literature, we selected a simple method for calculating the susceptibility of the PM component by calculating the tangent of the top curve (the demagnetizing curve) of the M – H loop at the highest applied field. 68 When the PM contribution is subtracted from the total response, all the samples represent S-like curves, showing room-temperature ferromagnetic characteristics. FM and PM components are shown separately in Fig.…”

“…This suggests doped CuO NCs might be used in solar cell technology. 68 Also, doped NCs have improved degradation performance (Fig. 12) because the narrowed bandgap allows for more absorption of infrared and visible light at a lower recombination rate.…”

Morphological evaluation and boosted photocatalytic activity of N-doped ZnO nanoparticles prepared via Co-precipitation method

“…The calculated micro-strain from the W–H plot exhibited an initial increase up to 1 mol.% nitrogen doping, followed by a subsequent decrease. Doping generated lattice disorder, due to size mismatch, leading to stress generation and consequently an increase in the average micro-strain increased [ [51] , [52] , [53] ]. However, micro-stain decreased with 2 mol.% doping, possibly due to lattice shrinkage, as supported by the lattice parameter values provided in Table 1 .…”