A programmable compound prism powered by triboelectric nanogenerator for highly efficient solar beam steering
A programmable compound prism powered by triboelectric nanogenerator for highly efficient solar beam steering
复制标题
由摩擦纳米发电机驱动的可编程复合棱镜，可实现高效的太阳光束控制
DOI：
10.1016/j.nanoen.2020.105524
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发表时间：
2021-02-01
期刊：
影响因子：
17.6
通讯作者：
Xu, Minyi
中科院分区：
文献类型：
--
作者：
Chen, Guijun;Wang, Yutao;Xu, Minyi
聚光光伏（CPV）由于其转换效率高、电池有效面积小，在取代传统平板光伏系统方面具有很强的竞争力。然而，辅助光束转向和聚光光学装置体积庞大，价格昂贵。本文提出了一种由摩擦电纳米发电机（TENG）驱动的可编程复合棱镜（PCP）用于太阳能光束导向。带有RC电路的圆盘式TENG可以产生直流电压信号，并且可以通过改变RC电路中的电阻来调谐电压信号。通过将可变直流输出连接到充满DC 550硅油、DI水和PMX 200硅油的PCP的左、右和后壁，可以以可编程的方式调制两个油/水接口。最大偏转角度范围为15。与仅有一个油水界面的传统单棱镜相比，PCP的效果提高了38%。提出的TENG-PCP用于偏转斜入射激光束，以触发多结太阳能电池的发电。随着所提出的TENG-PCP的运行，多结太阳能电池获得了1.2 mW的增量，表明所提出的TENG-PCP提高CPV的潜力。
Concentrator photovoltaics (CPV) has great competitiveness in replacing the conventional flat-panel PV system due to its high conversion efficiency and small cell active area. However, the accessory beam steering and concentrating optics are bulky and costly. Here we propose a programmable compound prism (PCP) powered by triboelectric nanogenerator (TENG) for solar beam steering. A disc TENG with a RC circuit could produce DC voltage signal, and the voltage signal could be tuned by varying the resistance in RC circuit. By connecting the variable DC output to the left, right and back walls of the PCP filled with DC 550 silicone oil, DI water and PMX 200 silicone oil, the two oil/water interfaces could be modulated in a programmable manner. A maximum deflection angle range of 15. was achieved in the PCP, which is 38% greater than conventional single prism with only one oil/water interface. The proposed TENG-PCP was employed to deflect an oblique incident laser beam to trigger the power generation in a multi-junction solar cell. With the operation of the proposed TENG-PCP, a 1.2 mW increment was achieved by the multi-junction solar cell, indicating the potential of boosting the CPV by the presented TENG PCP.