Investigation of rear SiOx/SiNx passivated solar cells under low irradiance intensities

The performance of rear SiO
_x
/SiN
_x
passivated solar cell under low-irradiance intensities has been investigated. A method, defined as the voltage divergence between derived Suns-V
_oc
and Suns-V
_oc
measurement is introduced to realize the behavior of solar cells under various irradiance conditions. According to certificated result, it shows SiO
_x
/SiN
_x
passivated PERC and full-BSF cell have consistency in efficiency dependence on irradiance conditions, even the low intensity with 200 W/m
²
.