针对连续激光辐照硅太阳能电池的损伤特性，采用光束诱导电流(LBIC)成像方法进行表征，并对其毁伤特性进行了分析。首先采用波长为1 070 nm的连续激光聚焦在硅太阳能电池表面，诱导太阳能电池产生损伤，再通过LBIC系统扫描得到激光辐照区域的光电流分布图，进而分析太阳能电池的损伤情况。为了表征不同深度下太阳能电池的损伤情况，LBIC测量系统分别采用650 nm和980 nm波长激光作为探测光源。结果表明，1 070 nm连续激光辐照硅太阳能电池非栅线部位时，太阳能电池损伤首先发生在内部；随着功率密度的增加，在太阳能电池表面熔融前，电池内部已经产生了失效区域。当激光辐照太阳能电池栅线时，栅线会发生熔断，导致辐照位置远离电极引线一侧的光电流下降；严重时会使太阳能电池产生垂直于栅线的裂纹，使远离电极引线一侧的电池失效。该研究成果可为连续激光辐照太阳能电池损伤机理研究提供参考。

Aiming at the damage characteristics of silicon solar cells irradiated by continuous-wave (CW) laser, a light beam induced current (LBIC) mapping system was applied to characterize the damage characteristics of solar cells, and the damage characteristics were analyzed. A 1 070 nm CW laser was used to focus on the surface of silicon solar cell to induce damage. A LBIC system was use to obtain the photocurrent spatial distribution of the laser irradiation area of solar cell to analyze the damage. In order to characterize the damage of solar cell at different depths, the LBIC system used 650 nm and 980 nm lasers as probe light sources respectively. The results show that when 1 070 nm CW laser irradiates the non-finger part of a silicon solar cell, the solar cell damage first occurs inside; with the increase of power density, there is an invalid region inside the solar cell before its surface melts. When the laser irradiates fingers, the finger will melting. It will result in a decrease in the photocurrent at the side of the irradiated position which away from the electrode lead. In severe cases, the solar cell will have cracks which perpendicular to fingers, and the cracks will invalidate the cell on the side away from the electrode lead. The results can provide a reference for the research on the damage mechanism of CW laser irradiated solar cells.