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Presented is nano-size effect of ZnO nanowires (NWs) on sensitivity of hydrogen sulfide (H2S) detection in ambient atmosphere. The sensing mechanism of ZnO NWs for H2S detection is found coming from nano-size effect that governs both the sulfuration reaction when H2S is introduced and the following desulfuration reaction when the gas is removed from air. Based on the nano-material property of smaller...
Presented is a novel silicon piezoresistive double-clamped beam with nano-thickness. It senses double-side surface-stress induced by molecular self-assembly or specific bio/chemical reaction. For the first time, both theoretical analysis and experiments results indicate that, when the thickness is down-scaled into nano-scale, the sensitivity of the clamped-beam piezoresistive self-sensing beam will...
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