Self-Powered On-Skin Electronics with Ultrathin Organic Devices

On-skin electronics have attractive attention as the next-generation health-monitoring systems. Ultrathin-film devices enable the conformal contact on human skin, realizing accurate and continuous detection of physiological signals. In order to improve usability of on-skin sensors, a power source has to be integrated with sensing components. In this talk, we will report on recent progresses of ultraflexible organic photovoltaic cells and their applications to wearable sensors. First, significant improvements of efficiency and environmental stability of ultraflexible organic power sources will be reported. Then, the integration of these power sources with functional electric devices including sensors has been realized.