A promising energy source for many current and future applications is a ribbon-like device that could simultaneously harvest and store energy. Due to the high flexibility and weavable property, a fabric/matrix made using these ribbons could be highly beneficial for powering wearable electronics. Unlike the approach of using two separate devices, here we report a ribbon that integrates a solar cell and a supercapacitor. The electrons generated by the solar cell are directly transferred and stored on the reverse side of its electrode which in turn also functions as an electrode for the supercapacitor. When the flexible solar ribbon is illuminated with simulated solar light, the supercapacitor holds an energy density of 1.15 mWh cm−3 and a power density of 243 mW cm−3. Moreover, these ribbons are successfully woven into a fabric form. Our all-solid-state ribbon unveils a highly flexible and portable self-sufficient energy system with potential applications in wearables, drones and electric vehicles.
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机译：可以同时收集和存储能量的带状设备是当前和未来许多应用中有希望的能源。由于具有高的柔韧性和可编织性，使用这些色带制成的织物/矩阵对于为可穿戴电子设备供电可能非常有利。与使用两个单独的设备的方法不同，这里我们报告一个将太阳能电池和超级电容器集成在一起的色带。由太阳能电池产生的电子被直接转移并存储在其电极的反面，该电极反过来又充当超级电容器的电极。当用模拟太阳光照射柔性太阳能带时，超级电容器的能量密度为1.15 mWh cm -3 ，功率密度为243 mW cm -3 。而且，这些丝带被成功地编织成织物形式。我们的全固态碳带展示了一种高度灵活且便携式的自给自足的能源系统，可在可穿戴设备，无人机和电动汽车中应用。
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