The chemical bath deposition (CBD) technique was used for the synthesis of the tin oxide (SnO2) thin films. X-ray diffraction (XRD) was employed to find the crystallite size by using Debye Scherrer’s formula. The surface morphology of SnO2 films was analyzed by the scanning electron microscopic (SEM) studies. The FT-IR spectrum exhibits the strong presence of SnO2. The optical properties of the...

We proposed optical gas sensors based on PLCs integrated with SnO2 thin films. SnO2 thin film was placed on the core layer appeared by removing the upper cladding layer of PLC. The propagation loss is analyzed using 2-D finite-difference time-domain method as a function of refractive index change of SnO2 thin film. The propagation loss of 0.18 dB was observed when the change of refractive index...

Natural sepiolite (Sep) nanofibers were coated with carbon and nanoscale SnO2 to prepare an emerging nanocomposite (SnO2-C@Sep), which exhibited enhanced electrochemical performance. Sepiolite could act as a steady skeleton, carbon coating principally led sepiolite from an isolated to an electric state, and decoration of nanoscale SnO2 was beneficial to the functionization of sepiolite. Cycling...

SnO2 is an abundant, low cost, natively n-type, wide band gap oxide, which can achieve high conductivities due to facile donor doping. Realization of a p-type SnO2 would, however, open up many new avenues in device applications, and has become a major research goal. Previous experimental and theoretical studies have proved inconclusive, with the p-type ability of SnO2 being both supported and q...

SnO2 nanobelts (NBs) have unique structural and functional properties which attract great attention in gas detecting. In this work, Eu doping is adopted to improve the gas sensitivity of pure SnO2, especially to enhance the response to one single gas. The Eu-doped SnO2 NBs, pure-SnO2 NBs, and their single NB devices are fabricated by simple techniques. The sensing properties of the two sensors ...

Silica xerogels containing Sm ions and SnO2 nanocrystals were prepared in a sol–gel process. The image of transmission electron microscopy (TEM) shows that the SnO2 nanocrystals are dispersed in the silica matrix. The X-ray diffraction (XRD) of the sample confirms the tetragonal phase of SnO2. The xerogels containing SnO2 nanocrystals and Sm 3+ ions display the characteristic emission of Sm ion...