UPRIGHT PYRAMIDAL TEXTURED SURFACES OF BIFACIAL PERC SOLAR CELLN TYPE SILICON, DUAL LAYERSSINX/SIO2 IMPACT OF THE SUBSTRATE THICKNESS ON THE SOLAR CELL EFFICIENCY

Textured surface morphology plays an important rol for solar efficiency by reducing the reflections at surfaces (front or rear) of the device.Adding films is also benefic .The substrate used is the silicon added two films of SiNx and SiOx.The silicon is in between the films.The surfaces both front and rear are passived.The photon current absorbed is not changing when the substrate thickness changes.Then it doen not affect the solar cell efficiency.