Heterojunction solar cell and assembly thereof

The utility model relates to a heterojunction solar cell and an assembly thereof. The heterojunction solar cell comprises a silicon wafer, an intrinsic layer, a doping layer and a transparent conducting layer, the intrinsic layer, the doping layer and the transparent conducting layer are sequentially stacked on two suede surfaces of the silicon wafer, a plurality of silicon oxide units distributed at intervals are further arranged on the surface, away from the doping layer, of the transparent conducting layer, and grid line electrodes are arranged between the adjacent silicon oxide units. The refractive index of the silicon oxide unit is between the refractive index of the air and the refractive index of the transparent conductive layer. The heterojunction solar cell is low in production cost, simple in process and easy to implement, and has excellent short-circuit current and photoelectric conversion efficiency. 本实用新型涉及一种异质结太阳能电池及其组件。该异质结太阳能电池包括硅片以及依次层叠设置于硅片两个绒面上的本征层、掺杂层以及透明导电层，透明导电层远离掺杂层的表面还设置有多个间隔分布的氧化硅单元，