tin dioxide – TechConnect Briefs

Spectral Characterization of Tin Dioxide for Gas-Sensing Applications

Alghamdi H., Concepcion B., Baliga S., Misra P., Howard University, US

Thin films and powder samples of tetragonal tin dioxide (SnO2) on UV quartz and silicon wafers, created through radio frequency (RF) sputtering in an oxygen/argon mixed atmosphere, have been prepared and characterized spectroscopically. These thin [...]

Thin film-resistive gas sensor with SnO2/Au nanocomposite for hydrogen sulfide detection

Chang B-W, Ding S-J, Chen R.L.C., Hungkuang University, TW

A highly sensitive and selective H2S gas sensor has been developed by deposited a SnO2 thin film on an alumina substrate with a spin-coated method. This SnO2 sensing film was be made by a sol-gel [...]

A novel strategy for fabrication of mesoporous crystalline tin dioxide films with large pores and fully crystalline walls

Fattakhova-Rohlfing D., Rathousky J., University of Munich (LMU), DE

We have developed a new facile procedure for manufacturing crystalline thin films of tin oxide with a uniform mesoporous architecture and full crystallinity of the walls. The procedure is based on the evaporation-induced self-assembly of [...]

Micro Patterning Sensor Layers by Flame Deposition and Annealing

Tricoli A., Graf M., Mayer F., Kühne S., Hierlemann A., Pratsinis S.E., Swiss Federal Institute of Technology (ETH Zürich ), CH

A wafer-level, CMOS-compatible, dry process for in-situ synthesis, deposition and annealing of nanostructured, porous metal-oxide layers for gas sensors is presented. First, lace-like, nanostructured layers of pure or Pt-doped SnO2 featuring high porosity (98%) are [...]