Comparative study on damage characteristics of triple-junction GaAs solar cell irradiated by pulsed laser in different environments

Triple-junction GaAs solar cells were irradiated by nanosecond pulse laser with a wavelength of 1064nm, in atmospheric and vacuum environments respectively to study the damage characteristics of triple-junction GaAs solar cells irradiated nanosecond pulse laser in different environments, and the damage effects of pulse laser in two environments were compared and analyzed. The experimental results show that the damage of solar cells irradiated by nanosecond pulse laser is significantly affected by the target energy density, and the damage effect is positively correlated with the number of pulses, which increases with the number of pulses. Due to the high peak power, short action time, no obvious thermal effect of the action process, and no material migration phenomenon, the damage effect of solar cells is similar under pulsed laser irradiation with the same parameters in different environments.