기능성 혁신 소재 연구실

Three types of operational modes based on contact-separation, sliding, and freestanding are studied for two different configurations with a double-electrode and a single-electrode structure in the TENGs. Various charge transfer mechanisms to explain the operational principles of TENGs during triboelectrification are also studied for electron, ion, and material transfers. Thereafter, diverse methodologies to enhance the output power considering the energy harvesting efficiency and energy transferring efficiency are surveyed. At present, fossil energy is still our main source of energy, but the greenhouse effect and resource depletion are becoming increasingly severe. therefore, the development of a clean and abundant new energy source is urgent. Hydrogen energy is the cleanest energy source that has always attracted worldwide attention. Water splitting can produce hydrogen, which is one of the promising candidates obtained through clean and renewable method. The key requirements of a highly responsive sensor with good detectivity are a high temperature coefficient of resistance (TCR) for the thermo-sensitive layer and high IR absorption. Low 1/f noise and thermal noise are also desirable characteristics, affected by the resistance of the TCR materials.