The effect of front pyramid heights on the efficiency of homogeneously textured inline-diffused screen-printed monocrystalline silicon wafer solar cells

In this work, the impact of heights of homogenously covered pyramids on the performance of screen-printed inline-diffused monocrystalline solar cells has been studied. Three alkaline texture processes with potassium silicate additive are optimised to result in with a narrow range of heights. For the screen-printed cells there is no significant variation in effective minority carrier lifetime, reflectance, open-circuit voltage or short-circuit current. While cells in all three groups demonstrate high fill factor (>79%), an average fill factor gain of up to 1% absolute can be achieved by using the best-suited texture process.