Our group can design an inhalation-driven vertical flutter TENG with an amplified current output. The TENG can function as a user-position-indicating light and power a commercial Bluetooth tracker and wirelessly transfer the Bluetooth signal to a smartphone. In addition, the TENG can detect the user’s respiration state or the presence of chemical warfare agents (GB, DMMP, etc.) via output waveforms.
In our group, triboelectric bicycle tire system (TBT-system) considering the actual material/structure of commercial bicycle tires, can be fabricated. The TBT system can be effectively used to enhance bicycle safety; according to the peak magnitude and waveform data, the TBT system can function as a self-powered bicycle pressure sensor. Also, the freestanding-mode TBT system can be utilized as a self-powered bicycle safety light in real time, demonstrated by its ability to power LEDs.
Our group can design a practical speed bump triboelectric nanogenerator (SB-TENG) considering the existing structures/materials and fabrication processes of commercial speed bumps. The overall structure is simple, electrode-inserted, and fully packaged. Also, we demonstrated that the SB-TENG can serve as a s self-powered automobile warning sensor and velocity sensor in ITSs.