Templet-free one-pot synthesis of Bi-doped ZnTe nanoflowers by cation exchange method for optoelectronic applications and antibacterial activity

Morphological evolution of individual microrods to self-assembled 3D hierarchical flower architectures of CuBixIn1−xSe2 for photo response applications

“…Additionally, the observed E g is over the IR region with the orange-red emission range, which will be beneficial for IR optics-related applications. 17,33 The estimated ‘ E g ’ value tabulated in Table 2 shows a decreasing pattern from 1.38 eV to 1.29 eV as the Bi content increases, as shown in Fig. 6(b).…”

“…16 The introduction of Bi dopants into ZnTe nanosheets demonstrated effectiveness for biological applications via displaying efficient antibacterial activity against pathogenic bacteria including Staphylococcus aureus and Pseudomonas aeruginosa . 17 Another notable outcome was observed with Bi alloying in a Se–Te nanocomposite, leading to enhanced thermal conductivity and a reduction in the Seebeck coefficient. The doped sample is a superior thermoelectric material to the undoped counterpart.…”

2D hexagonal CuGaSe2 nanosheets by a microwave assisted synthesis method: photoresponse and optical study for optoelectronic applications

“…Furthermore, the absorption coefficient and optical bandgap values E g are related by using the Tauc relation. The Tauc relation for a direct bandgap material is given by 47 αhv = B ( hv − E g ) p where B presents a constant known as the Tauc parameter. It depends on the transition probability and deliberates the degree of disorder in the system, h is the Planck constant, ν is the incident photon's frequency, E g is the optical bandgap, and p represents the kind of electronic transition that takes place during the absorption between the valence and conduction bands and is numerically equal to ½, 3/2, 2 or 3 for direct allowed, direct forbidden, indirect allowed or indirect forbidden transitions, respectively.…”

Hydrothermal Synthesis of Cu0.66‐xZn0.34+xSe Materials and Investigation of Their Structural, Optical, and Magnetic Properties

“…All the microstructural parameters are calculated and presented in Table 1. The average crystallite size of the CuZnSe sample was determined by using Scherrer's equation as follows, [47,48] $$$\vcenter{\openup.5em\halign{$\displaystyle{#}$\cr {\rm Crystallite}\ {\rm size}\ ({\rm D})={{k\lambda }\over{\beta cos\theta }}\hfill\cr}}$$$ …”

“…All the microstructural parameters are calculated and presented in Table 1. The average crystallite size of the CuZnSe sample was determined by using Scherrer's equation as follows, [47,48] Crystallite size ðDÞ ¼ kl bcosq…”