A comparative study of the structural and optical properties of transition metals (M = Fe, Co, Mn, Ni) doped ZnO films deposited by spray-pyrolysis technique for optoelectronic applications

Synthesis and comparative study of the structural and optical properties of binary ZnO-based composites for environmental applications

“…In fact, the diffusion led to the substitution of Zn ions by transition metal ions and caused changes in the lattice constants of the ZnO structure, which was not observed. 41 Therefore, the Mn 3 O 4 , Fe 3 O 4 , CuO and NiO particles are well dispersed on the ZnO surface for each composite.…”

Synthesis of TiO2/ZnO photoanodes on FTO conductive glass for photovoltaic applications

“…For larger grain sizes, there is an increase in the crystallinity of the structures [31]. Other techniques like spray pyrolysis, co-precipitation, DC magnetron sputtering, sol-gel, spin coating, and thermal synthesis obtained sizes of 34.7, 32, 23.66, 42-47, and 14 nm [1,18,[33][34][35]. The large crystallite sizes in this work can be explained by the high concentration of titanium dioxide, above 10%, and the heat treatment at 450 °C [17].…”

“…These results can be improved when combining ZnO with other oxide semiconductors. Many works have mixed ZnO with oxides containing elements such as tin (Sn), titanium (Ti), aluminum (Al), cobalt (Co), and gallium (Ga), amongst others [7][8][9][10][11][12][13][14][15][16][17][18]. TiO 2 is a viable option with ZnO due to similarities between the two oxides, like the band gap energy value, around 3.0 eV for TiO 2 and 3.2 eV for ZnO [19].…”

A Comparative Analysis on the Crystalline Behavior, Topographical, Photoluminescence, and Leakage Current Characteristics of BiFeO3 Nanopowders and Thin Films

“…[19] The estimated lattice parameters computed for BFO in powder form Maud analysis [20] plots. [21][22][23] W-H plots usually represents a graphical drawn between 𝛽 cos 𝜃 (Y-co-ordinate) and 4sin 𝜃 (X-co-ordinate) with the aid of collinear data points, linear fit has been made followed by to determine the crystallite size, intercept, slope (crystalline strain), and dislocation density of the BFO powder and thin films. Thus results are consolidated and are given Table 1.…”

“…Crystallite size, crystalline strain, and dislocation density of the BiFeO 3 (BFO) powders and thin films using the W-H plots. [21][22][23] . structural properties of the BFO unit cell more specifically in the film state.…”