Tailoring the structural, optical, photoluminescence, dielectric and electrical properties of Zn0·6Ni0·2Mg0·2Fe2-xLaxO4 (x = 0.00, 0.0125, 0.0250, 0.0375)

Impact of Ce doping on the optoelectronic and structural properties of a CsPbIBr2 perovskite solar cell

“…The following relationship is used to obtain the average crystallite size ( D ). 38 The crystal size of the sample containing CsPbIBr 2 is 21.2 nm, which is increased to 32.0 nm upon introducing the 4% Ce dopant. The difference in the ionic radii of Pb 2+ (1.19 Å) and Ce 3+ (1.02 Å) is responsible for their impact on crystal formation.…”

“…Bragg's law may be used to calculate the d -spacing: 38 The diffraction order parameter ( n ) and angle of diffraction ( θ ) play a significant role in the material's diffraction properties, as illustrated in Fig. 2c.…”

“…Tauc's relation was used to determine the band gap energy ( E g ) of the CsPbIBr 2 and Ce-doped CsPbIBr 2 films, as stated below: 38 αhv = A ( hv − E g ) n In the equation mentioned above, the absorption coefficient is denoted by α , E g represents the energy of the optical band gap, hv represents the energy of the input photons, and A is a constant. In the case of allowed direct bandgap transitions, the value of n is 2, but in the case of an indirect bandgap, n is equal to ½.…”

Comprehensive Improvement of Various Features of Cu–Cd Ferrites (Cu0.5Cd0.5Fe2–xCexO4) by Cerium (Ce3+) Ion Substitution

“…“ d b ” is reduced due to dissimilarities in the atomic weights of Ce 3+ and Fe 3+ , resulting in variations in porosity. , The reducing behaviors of both densities ( d x and d b ) and porosity are shown in Table . Various other parameters, including the polaron radius and hopping lengths for tetrahedral and octahedral sites, were resolved . The polaron radius exhibited an increasing trend with an increase in Ce content, as shown in Table .…”

Impact of Cr doping on the structural and optoelectronic properties of a CsPbIBr2 perovskite solar cell

“…22 Impurity signals from CsCr, IBr 2 , pure-phase CsPbIBr 2 , and Cr-CsPbIBr 2 are not observed in any of the films. 7,23 In order to determine the average crystallite size (D), we followed the relationship that is shown below: 24,25…”