Fig. 1

The schematic diagram of a hybrid piezoelectric-triboelectric nanogenerator (BPP-HNG) based on BTO-PVDF/PDMS for human machine interaction applications. (a) BPP-HNG with multi-layer structure for human gesture monitoring; (b) The working principle of BPP-HNG; (c) Schematic diagram of the application process of BPP-HNG for controlling the motion of robot finger remotely.