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...

ZnO is a commonly used material for hydrogen gas sensors. In this study, nanofiber film with diameter of approximately 60 nm was synthesized by the electrospinning method. Compared to previously reported sensors, an abnormal phenomenon observed here, where resistance increased upon exposure in temperature range from 210 °C 330 °C. The physical mechanism explored through microstructure analysis ...