We have prepared a flexible natural water evaporation (NWE) driven silicon carbide (SiC) nano-generator on the polyethylene terephthalate (PET) substrate. When the water driven by evaporation flows through the surface of SiC material, the solid-liquid interaction between water and SiC will induce continuous electricity output. The detail mechanism of the solid-liquid interaction is discussed in this paper. The open circuit voltage (V_oc) and short circuit current (I_sc) are nearly proportional to the evaporation height and evaporation width of the generator, respectively. Moreover, the V_oc and I_sc of the generator can be finely controlled by regulating the relative humidity, air flow and photo-thermal energy assistant technique.

我们已经在聚对苯二甲酸乙二醇酯（PET）基材上制备了一种灵活的自然水蒸发（NWE）驱动的碳化硅（SiC）纳米发电机。当蒸发驱动的水流经SiC材料的表面时，水与SiC之间的固液相互作用将产生连续的电能输出。本文讨论了固液相互作用的详细机理。开路电压（V _oc）和短路电流（I _sc）分别与发电机的蒸发高度和蒸发宽度几乎成比例。此外，V _oc和I _sc 通过调节相对湿度，空气流量和光热能辅助技术，可以很好地控制发电机的功率。