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首页> 外文期刊>Nanotechnology >Observation of a water droplet motion by using an oxide nanowire transistor covered by a nanofiber mesh
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Observation of a water droplet motion by using an oxide nanowire transistor covered by a nanofiber mesh

机译：通过使用被纳米纤维网覆盖的氧化物纳米线晶体管观察水滴运动

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摘要

The motion, in particular the flow speed and dropping height, of a water droplet was observed using a tin oxide (SnO2) nanowire transistor with a polyurethane (PU) nanofiber mesh as a selective filter. The changes in the SnO2 nanowire transistor characteristics, particularly the threshold voltage and on-current, were due to the adsorbed water molecules that acted as electron donors on the surface of the oxide nanowire semiconducting channel. The role of the PU nanofiber mesh, allowing the passage of water vapor while blocking liquid water, was to restrict the direct contact between the water droplet and the oxide nanowire semiconducting channel and electrodes, which could cause abnormal transistor characteristics. The selective filtering properties of the PU nanofiber mesh could be controlled by changing the number of PU layers.
机译：使用带有聚氨酯（PU）纳米纤维网的氧化锡（SnO2）纳米线晶体管作为选择性过滤器，可以观察到水滴的运动，尤其是流速和滴落高度。 SnO2纳米线晶体管特性的变化，特别是阈值电压和导通电流的变化，是由于吸附的水分子在氧化物纳米线半导体通道表面上充当了电子供体。 PU纳米纤维网的作用是阻止水分通过，同时允许水蒸气通过，从而限制了水滴与氧化物纳米线半导体通道和电极之间的直接接触，这可能会导致晶体管特性异常。可以通过改变PU层的数量来控制PU纳米纤维网的选择性过滤特性。

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