抄録
Implanted devices such as pacemakers use a battery for a power supply. As a result, the people using the pacemaker must have operation periodically to change a battery. Therefore energy harvesting technology is effective in this field. In this study, we proposed electrical power harvesting from optical energy for implantable devices, and we have tried to find techniques for stable electricity supply using the solar cell in the living body .For the first evaluation of this study, we measured the basic property of the film-type solar battery. As a result, the output of 1500μW was provided. Secondly, we measured the output provided from a solar battery implanted under the skin of the living rat. It supplied 500μW. however, the output decreased considerably a day after implanting because of reaction to foreign body. We solved this problem by using a small spherical solar cell. An implanted cell could generate 50µW. The results of the study show that enough electricity was provided to operate implantable devices such as pacemakers.
