Study of vibrational droplet triboelectric nanogenerator on structural and operational parameters

Publication date: Available online 24 January 2020Source: Nano EnergyAuthor(s): Jing Ding, Wen-Quan Tao, Shih-Kang FanAbstractStructural parameter, such as device structure, and operational parameters, such as load resistance and droplet arrangement, were studied on the vibrational droplet triboelectric nanogenerators. Single-droplet devices with different structures were tested and theoretically analyzed. It is discovered that the device structure influences the output power by changing the triboelectric charge and the tribo/inductive capacitance ratio. The dependence of the optimal load resistance on the droplet number and the vibration frequency was experimentally studied with parallel-droplet devices. Calculations were performed to quantify the relationship between the optimal load resistance and the influential factors. The output performance of the serial-droplet device was measured and compared with that of the single-droplet and parallel-droplet devices. It is found that their output performance is significantly affected by the parasitic capacitance.Graphical abstract
Source: Nano Energy - Category: Nanotechnology Source Type: research