@article{Shao_Cheng_Chen_Xie_Sun_Shen_Chen_Zhu_Zhang_Liu_Wen_Sun_2018, title={Triboelectric–Electromagnetic Hybrid Generator for Harvesting Blue Energy}, volume={10}, url={https://www.nmlett.org/index.php/nml/article/view/264}, DOI={10.1007/s40820-018-0207-3}, abstractNote={<p>Progress has been developed in harvesting low-frequency and irregular blue energy using a triboelectric–electromagnetic hybrid generator in recent years. However, the design of the high-efficiency, mechanically durable hybrid structure is still challenging. In this study, we report a fully packaged triboelectric–electromagnetic hybrid generator (TEHG), in which magnets were utilized as the trigger to drive contact–separation-mode triboelectric nanogenerators (CS-TENGs) and coupled with copper coils to operate rotary freestanding-mode electromagnetic generators (RF-EMGs). The magnet pairs that produce attraction were used to transfer the external mechanical energy to the CS-TENGs, and packaging of the CS-TENG part was achieved to protect it from the ambient environment. Under a rotatory speed of 100 rpm, the CS-TENGs enabled the TEHG to deliver an output voltage, current, and average power of 315.8 V, 44.6 μA, and ~ 90.7 μW, and the output of the RF-EMGs was 0.59 V, 1.78 mA, and 79.6 μW, respectively. The cylinder-like structure made the TEHG more easily driven by water flow and demonstrated to work as a practical power source to charge commercial capacitors. It can charge a 33 μF capacitor from 0 to 2.1 V in 84 s, and the stored energy in the capacitor can drive an electronic thermometer and form a self-powered water-temperature sensing system.</p> <p>Highlights:</p> <p>1 A hybrid generator including contact–separation-mode triboelectric nanogenerators (CS-TENGs) and rotary freestanding-mode electromagnetic generators (RF-EMGs) with the potential to harvest water flow-based blue energy from the environment was designed.<br>2 The magnet pairs that produce attraction were used to achieve packaging of the CS-TENGs part, protecting it from being affected by the ambient environment.<br>3 In addition to powering light-emitting diodes, the generator can charge commercial capacitors and use the stored energy to power an electronic water thermometer.</p>}, number={3}, journal={Nano-Micro Letters}, author={Shao, Huiyun and Cheng, Ping and Chen, Ruixuan and Xie, Lingjie and Sun, Na and Shen, Qingqing and Chen, Xiaoping and Zhu, Qianqian and Zhang, Yi and Liu, Yina and Wen, Zhen and Sun, Xuhui}, year={2018}, month={May}, pages={54} }