Impedance spectroscopy is essential in understanding the physical and chemical processes
that affect the electronic behavior of semiconducting metal oxide-based gas sensor …

The necessity of detecting and recognizing gases is crucial in many research and
application fields, boosting, in the last years, their continuously evolving technology. The …

Nitrogen dioxide (NO 2) sensing is important in terms of the agriculture development and
healthcare monitoring. However, relatively poor recovery kinetics at a low temperature is still …

In order to optimize the performance of gas sensor devices, nanocrystalline SnO2 thin film
and single crystalline SnO2 nanowire sensors have been characterized for the target gases …

Results of studies on single and multiple SnO 2 nanowire gas sensors with impedance
spectroscopy are reported. Equivalent circuit modeling is used to draw fundamental …

Nanosized tin disulfide (SnS 2) powder was synthesized through a simple and inexpensive
process, then characterized via thermal, chemical, structural and morphological analyses …

Sm 2 O 3 microspheres were prepared by the coprecipitation method, using samarium
nitrate and formic acid. The size of the microspheres was in the range 1–6 μm; however …

Combined experimental and theoretical investigations were conducted on the electronic
structure, as well as the optical and gas-sensing properties of mixed-phase CaCu 3 Ti 4 O …

Here we present an easy-reproducible microwave-assisted hydrothermal route for preparing
pure nanocrystalline CeO 2 films. The produced materials were characterized using a wide …

In this work n-type CaCu 3 Ti 4 O 12 (CCTO) thick films obtained by screen printing were
studied. The role of the potential barrier characteristics (height and width) was considered in …