| 题目： | Simultaneously Harvesting Friction and Solar Energy via Organic/Silicon Heterojunction with High Direct-current Generation |
作者： | Yusheng Wang,1,* Guohua Zhang,1 Haihua Wu1 and Baoquan Sun1,2,* |
单位： | 1Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, 199 Ren’ai Road, Suzhou 215123, P. R. China 2Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Taipa, Macau, SAR 999078, P. R. China |
摘要： | The direct-current triboelectric nanogenerator (TENG) is a promising portable energy source that can power mobile electronics without any rectification circuits. Recently, the silicon-based TENGs, as a rectification-free power source, have drawn wide attention due to their high current-density outputs. However, the performance of silicon-based TENGs is still inferior owing to a low amount of carrier generation and poor efficiency of carrier collection. Here, a strategy is proposed to improve the performance of metal/ silicon TENGs via building an alternative device structure consisting of a transparent conductive polymer interlayer. This transparent interlayer can passivate surface defects as well as enhance carrier extraction, enabling a simultaneous harvest of friction and solar energy. More importantly, the gain effect of friction-induced electric field occurs, which would significantly surge the power output efficiency. As a result, the device yields a record output performance with the output voltage over 1000 mV and the output current up to 6.0 × 103 A m-2 under 20 mW cm-2 white light illumination. This research not only promises an alternative energy source device that can harvest both mechanical and solar energy but also paves the way to separate photo-generated with a friction-induced electric field. |
影响因子： | 25.245 |
分区情况： | 一区 |
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