| 초록 |
Triboelectric nanogenerator (TENG), which can generate power with a simple touch as a next-generation wearable power source, is drawing attention. Among various methods to improve the power of TENG, the irradiation of ultraviolet (UV) is simple, non-expensive, and highly scalable process. Here, we introduce the effect of molecular structure on TENG using UV irradiation for two types of thermoplastic block copolymers (BCs); saturated and unsaturated. The voltage of saturated BCs increased up to 15 times compared to before UV. The contact charge is analyzed by the surface potential and dielectric constant. When charging the capacitor, saturated BCs irradiated by UV shows 16 times higher efficiency than before UV. It is confirmed that it can be successfully applied to the stretchable tactile sensor. Since the UV irradiation area can be easily controlled, the number of pixels and wiring of the sensor can be significantly reduced compared to the amount of information. |
