| 초록 |
Photoelectrochemical(PEC) devices using solar-energy are made of materials having a band gap wider than the energy required for reaction. Because of its stability, single-layer inorganic materials (TiO2, WO3, etc.) are mainly used. However these materials absorb only UV wavelengths, have very low efficiency. As one of the methods to overcome this point, research has been conducted to combine a metal causes a surface plasmon effect with PEC device. It is known that PEC device with plasmon metal have high efficiency due to the serveral effects including hot electrons effect. In this study, TiO2 cylinder will make by using an AAO template. Additionally 3D-quasi gold structure will be added. By combining TiO2 with 3D-quasi structure, it will be possible to increase the efficiency by absorbing a wide wavelength of light without losing the surface area due to the TiO2 cylinder. |
