For the first time, this paper proposes natural seagrass based prominent ocean flowering and bio-friendly material for triboelectric nanogenerator (TENG) through a simple spray coating technique. Herein, two different seagrass species (Zostera marina and Phyllospadix japonicus) are effectively applied as a tribopositive material. Furthermore, spray coatable Phyllospadix japonicus seagrass film/PET TENG yields a higher power density of 70.42 μW/cm² compared to Zostera marina seagrass film/PET TENG of 50.42 μW/cm² because of the higher oxygen functional groups, which enables the device to offer increased electron-donating capability. Moreover, the output performance of the proposed spray coatable TENG device improved by about 31% compared to powder-based seagrass film. Furthermore, the Phyllospadix japonicus based TENG presents the extraordinary working stability up to 72,000 cycles (2 h), which confirms the excellent robustness of the fabricated device. It is further demonstrated that the proposed Phyllospadix japonicus based TENG can easily charge various commercial capacitors and capable of driving about 150 light-emitting diodes (LEDs), and other microelectronic devices. We anticipate that by applying seagrass as a tribopositive layer, the proposed spray coatable TENG device will serve its promising role for energy generation with extremely low fabrication cost. Furthermore, in addition to the economic use of seagrass as a TENG, this work can favorably contribute to sustainable seagrass management.

本文首次通过简单的喷涂技术为摩擦纳米发电机（TENG）提出了基于天然海草的显着海洋开花和生物友好材料。这里，两个不同的海草物种（叶藻和虾海藻属刺参）被有效地应用为tribopositive材料。此外，喷雾涂布型虾海藻属刺参海草膜/ PET TENG得到的70.42μW/ cm的较高功率密度²相比叶藻海草膜/ 50.42μW/厘米PET TENG ²由于具有更高的氧官能团，这使器件能够提供更高的给电子能力。此外，与粉末基海草薄膜相比，所提出的可喷涂 TENG 设备的输出性能提高了约 31%。此外，基于Phyllospadix japonicus的 TENG 具有高达 72,000 次循环（2 小时）的非凡工作稳定性，这证实了所制造设备的出色稳健性。进一步证明，提议的Phyllospadix japonicus基于 TENG 的 TENG 可以轻松为各种商用电容器充电，并能够驱动大约 150 个发光二极管 (LED) 和其他微电子设备。我们预计，通过将海草用作摩擦正层，所提出的可喷涂 TENG 装置将以极低的制造成本发挥其用于发电的有前景的作用。此外，除了将海草经济地用作 TENG 外，这项工作还可以为可持续的海草管理做出积极贡献。