纳米金属球增强有机太阳电池光吸收的模拟

Numerical simulation of metal nanospheres on improving light absorption of organic solar cells

使用时域有限差分法(FDTD),在AM1.5的光照条件下研究不同材料的纳米金属球在有机太阳电池活性层表面的有序排列,从而产生表面等离子激元效应增强有机太阳电池对光的吸收。结果表面:通过改变纳米金属球的直径以及排列的间距大小等条件,有机太阳电池对光的吸收增强效应会呈现规律性的变化,而且当设定银纳米金属球颗粒的直径为6 nm,间距设定为8 nm时,有机太阳电池活性层对于光的吸收可增强21.7%。

The finite difference time domain （FDTD） method was used to investigate the influence of the diameters andnanosphere densities on the organic solar cells with Au and Ag nanospheres. It is found that light absorptionenhancement is systematically affected by the conditions, such as diameter and the periodic distance of the metalnanoparticles. In addition, the absorption of organic solar cells can be increased by 21.7% when the diameter of theadopted Ag nanospheres is 6 nm and the periodic distance is 8 nm.