The synthesis feasibility of silicon-tin nanocrystals by discharges in liquid nitrogen is studied using a Si-10 at % Sn sintered electrode. Time-resolved optical emission spectroscopy shows that silicon and tin melt almost simultaneously. The presence of both vapours does not lead to the synthesis of alloyed nanocrystals but to the synthesis of separate nanocrystals of silicon and tin with aver...

The principal purpose of this study is to present a new design for preparing highly active immobilized gold nanoparticle-based plasmonic photocatalysts. Gold nanoparticles were loaded on rutile TiO2 particles with a mean size of 80 nm (Au/TiO2) by the deposition precipitation method. The surface of SnO2 particles with a mean size of 100 nm was modified by copper(ii) oxide clusters (CuO/SnO2) wi...

Two dimensional (2D)SnO2 nanosheets were synthesized by a substrate-free hydrothermal route using sodium stannate and sodium hydroxide in a mixed solvent of absolute ethanol and deionized water at a lower temperature of 130 °C. The characterization results of the morphology, microstructure, and surface properties of the as-prepared products demonstrated that SnO2 nanosheets with a tetragonal ru...

Tin oxide, SnO2, is a wide-band gap semiconductor. It is widely used in electronic devices. When doped with F, Sb, or Mo it becomes a conductor. In the case of antimony doping it was evidenced that the conductivity was not linearly dependent on the doping level [1]. So, there is an inevitable interest to understand this phenomenon. Recently a structural study of hydrothermally prepared nanocrys...

Transparent conducting oxides (TCOs) are a crucial component of solar cells. Tin-doped indium oxide (ITO) is the most employed TCO, but scarcity and high price induce search for lower-cost TCOs with equivalent properties as substitutes. Tin dioxide (SnO2) films have many advantages, such rich sources material, low prices, nontoxicity. SnO2 present visible-light transmittance, near-infrared ligh...

Perovskite solar cells (PSCs) have become a promising photovoltaic (PV) technology, where the evolution of electron-selective layers (ESLs), an integral part any PV device, has played distinctive role to their progress. To date, mesoporous titanium dioxide (TiO2)/compact TiO2 stack been among most used ESLs in state-of-the-art PSCs. However, this material requires high-temperature sintering and...

A comparative study is presented on the photoluminescence (PL) response toward molecular oxygen (O2) in tin dioxide (SnO2), zinc oxide (ZnO) and titanium (TiO2) nanoparticles. The findings show that both PL enhancement quenching can be observed different materials, arguably depending spatial localization of defects responsible for emission each oxide. No significant results are evidenced SnO2 Z...

SnO2 nanoparticles were synthesized by a facile electrochemical method based on anodic oxidation of a tin metal sheet. The resulting particles, with an average diameter of about 20nm, were then loaded with varied amounts of HAuCl4, forming SnO2–Au(x) (x=0, 0.095, 0.38, 0.76, 1.9, 3.0, and 3.8 at.%) hybrid nanoparticles after calcination at elevated temperatures (700 ◦C). X-ray diffraction (XRD)...

Today, monitoring and classification of hydrogen gas by metal oxide-based sensors are widely studying to improve their selectivity stability. In present work, sensing properties magnetron sputtered deposited pure SnO2 thin films have been studied. The film was on glass substrate as-deposited annealed at 450 °C for 6 hrs. has crystalline tetragonal structure, granular surface morphology non-stoi...

Tin oxide (SnO2) nanofibers are successfully prepared by electrospinning homogeneous viscous solutions of tin acetate in polyvinylpyrrolidone (PVP). The electrospinning is carried out by applying a DC voltage to the tip of a syringe and maintaining the tip to collector distance (TCD), i.e. at DC electric field of 1.25 kV∙cm−1. The electrospun nanofibers are calcined between 550 ̊C and 650 ̊C for ...