All-in-one energy harvesting system with triboelectric and thermoelectric hybrid generator and Au nanoflower supercapacitor for a light stimulation to the wildlife,International Journal of Energy Research

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All-in-one energy harvesting system with triboelectric and thermoelectric hybrid generator and Au nanoflower supercapacitor for a light stimulation to the wildlife
International Journal of Energy Research ( IF 4.3 ) Pub Date : 2021-09-14 , DOI: 10.1002/er.7260
Inkyum Kim _{1,

2} , Jonghyeon Yun _{1,

2} , Seungju Jo _{1,

2} , Youngsu Kim _{1,

2} , Hyeonhee Roh _{1,

2} , Daewon Kim _{2,

3}

Affiliation

The sphere of activity between the wildlife and human has been more overlapped with the enlarged infrastructure. With using the energy harvesting-storage technology, the warning signal can be easily generated and transmitted to the wildlife by a light stimulation. Here, the hybrid energy harvester with a triboelectric nanogenerator and a plate-typed thermoelectric generator is integrated with a gold nanoflower-based supercapacitor for directly storing energy. 23.7 V of the V_OC and 0.86 μA of the I_SC are generated through the triboelectric nanogenerator. For the thermoelectric generator, 40 mV and 10 mA of each electrical output are generated with the temperature difference of 6°C. The hybrid generator is optimized by changing the connection and adding components for the highest charging speed. The electrochemical characteristics of the supercapacitor are demonstrated with the cyclic voltammetry and discharging time in the galvanostatic charge-discharge test. After storing the generated energy into the fabricated supercapacitor, an external photo-sensing system is stimulated by an LED light operated by the stored electrical energy. By harvesting energy from the wildlife, the ability for providing an optical warning signal to the animals can be successfully demonstrated and open up a new field of ecologically friendly technology.

中文翻译：

多合一能量收集系统，带有摩擦电和热电混合发电机和金纳米花超级电容器，用于对野生动物进行光刺激

野生动物和人类之间的活动范围与扩大的基础设施有更多的重叠。使用能量收集-存储技术，可以很容易地产生警告信号并通过光刺激传递给野生动物。在这里，具有摩擦纳米发电机和板式热电发电机的混合能量收集器与基于金纳米花的超级电容器集成在一起，用于直接存储能量。23.7 V 的V _OC和 0.86 μA 的I _SC通过摩擦纳米发电机产生。对于热电发电机，每个电输出产生 40 mV 和 10 mA，温差为 6°C。混合发电机通过更改连接和添加组件以实现最高充电速度进行了优化。在恒电流充放电测试中，通过循环伏安法和放电时间证明了超级电容器的电化学特性。在将产生的能量存储到制造的超级电容器中之后，外部光敏系统受到由存储的电能驱动的 LED 灯的激励。通过从野生动物身上获取能量，可以成功地展示向动物提供光学警告信号的能力，并开辟生态友好技术的新领域。

更新日期：2021-09-14

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