MEDL Multiscale Energy Device Laboratory
Research topics
- Nano-/Micro-structured surface
- Engineering design based high output energy harvester
- Liquid based long lifespan energy harvester
- Self-powered sensor
- Energy loss recovery system
- Electrical Stimulation for cell vitalization
Self-powered sensor
1. Inhalation-Driven Gas-mask-Integrated Multifunctional System
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.
2. Highly Reliable Triboelectric Bicycle Safety Light and Pressure Sensor
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.
3. Triboelectric Speed bump as an Automobile Warning and Velocity Sensor
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.
