Research / 2021 / Article / Fig 4

Research Article

Concealed Wireless Warning Sensor Based on Triboelectrification and Human-Plant Interactive Induction

Figure 4

(a) Schematic representations of different types of experiments performed and (b) the corresponding detected current profiles. (c) Detected current as a function of the number of leaves that remained on the plant. (d) Relationship between the detected current and total surface area of leaves that remained on the plant.