Studies on structural and electrical behaviors of chemically grown ZnO/SnO2 nanocomposites

Structural, optical, and dielectric characteristics of pulsed laser deposited SnO2-TiO2 composite thin films

“…The loss decreases with increasing frequency and achieves saturation in the upper frequency range. When comparing SN00 and SN25 films, it was found that SN00 has the highest dielectric constant due to its smaller size and stronger interfacial polarization [21].…”

“…Figure 7(a) shows the experimentally fitted (red lines) dielectric constant for both samples using the Cole-Cole dielectric relaxation equation [21]. Where ε s and ε ∝ are static and high frequency (i.e., 2 MHz) dielectric constants, respectively, ε′ is dielectric constant, τ represents the relaxation time and α is represent the measure of a relaxation time distribution.…”

“…In addition, the amount of added oxygen, deposition temperature, and deposition time may all influence the growth of thin films deposited during PLD. Applications of these compounds are determined based on the bandgap value, defects, and oxygen content of the material [21]. Since both SnO 2 and TiO 2 have the same crystal structure, band gap engineering of TiO 2 -SnO 2 via doping/mixing is a crucial technology for fabricating effective and tuneable devices.…”

“…Due to their high dielectric permittivity and low loss factor over a wide frequency and temperature range, SnO 2 -TiO 2 composite thin films have garnered significant interest. Despite the small number of publications devoted to understanding the dielectric properties of PLD-deposited nanostructured TiO 2 and SnO 2 -based composites, this system [21] piqued our interest. Recent research has demonstrated that a mixture of TiO 2 and SnO 2 is very beneficial for humidity sensors [22] and dye degradation [23].…”