Nanowires (NWs) and nanobelts (NBs) are considered as ideal building blocks for constructing nanosized devices due to high surface to volume ratio and their special physical and chemical properties resulting from the reduced sizes. Until now, many semiconductor NWs/NBs have been successfully applied in nanodevices, including nanolasers,1 nanogenerators,2 and various chemical and biological nano...

Porous (pr-)SnO2-based powders were synthesized by ultrasonic spray pyrolysis employing home-made polymethylmethacrylate (PMMA) microspheres (typical particle size: 70 nm in diameter), and effects of the CuxO addition to pr-SnO2 powder on acetone toluene sensing properties investigated. Well-developed spherical pores reflecting morphology PMMA microsphere templates formed SnO2-based powders, wh...

The main objective of the paper was the analysis of the properties of SnO2|WO3 heterocontact as well as the determination of its response to 50 ppm of hydrogen sulphide. It was noticed that the sensitivity of the sensor being tested to hydrogen sulphide depended significantly on the polarization direction. When its parameters were compared with those of sensors the gas-sensitive layer of which ...

In recent years, two-dimensional layered material MXene has attracted extensive attention in the fields of sensors due to its large specific surface area and rich active sites. So, we employed multilayer Ti3C2TX SnO2 microspheres prepare SnO2/MXene composites for enhancing gas-sensing properties pristine SnO2. The composite was brushed on a microelectromechanical system (MEMS) platform make res...

Gas sensors based on tin oxide (SnO2) and palladium doped SnO2 (Pd:SnO2) active materials are fabricated by a laser printing method, i.e. reactive laser-induced forward transfer (rLIFT). Thin films from tin based metal-complex precursors are prepared by spin coating and then laser transferred with high resolution onto sensor structures. The devices fabricated by rLIFT exhibit low ppm sensitivit...

A new graphene-based composite structure, monolayer-ordered macroporous film composed of a layer of orderly arranged macropores, was reported. As an example, SnO2-reduced graphite oxide monolayer-ordered macroporous film was fabricated on a ceramic tube substrate under the irradiation of ultra-violet light (UV), by taking the latex microsphere two-dimensional colloid crystal as a template. Grap...

Sulfur dioxide (SO2) is a typical sulfur hexafluoride (SF6) decomposition by product in gas insulated switchgear (GIS). Online monitoring and analyzing SO2 gas concentration can timely and effectively evaluate the insulation performance of SF6-gas-insulated apparatus. In this study, pure and 3 at % Cu-doped SnO2 microspheres were synthesized via a simple and facile hydrothermal method, and were...

Semiconducting SnO2 nanowires have been used to demonstrate high-quality field-effect transistors, optically transparent devices, photodetectors, and gas sensors. However, controllable assembly of rutile SnO2 nanowires is necessary for scalable and practical device applications. Here, we demonstrate aligned, planar SnO2 nanowires grown on A-plane, M-plane, and R-plane sapphire substrates. These...

The development of high-performance chemiresistive gas sensors at room temperature is necessary and challenging for practical environmental monitoring industrial production controlling. Combining MXene (two-dimensional transition metal carbide) with SMO (semiconductor oxide) a promising strategy to enhance room-temperature sensing performance. However, there are few studies on the integration m...

According to recent research, the use of nanoparticles as a gas-sensitive material increases the selectivity and sensitivity and shortens the response time of a sensor. However, the synthesis of SnO2 nanoparticles presents many difficulties. The following article presents a simple and inexpensive method for the synthesis of SnO2 nanoparticles. The influence of the surfactant and polymer choice ...