Анотація:
In this work, the gettering process in the multicrystalline Si wafers by the combined getter structures of the porous Si and Al layers during annealings at temperatures 600 up to 750 °C has been theoretically studied. A kinetic model based on the diffusion equation has been developed, and the characteristics of increase in the minority charge carrier diffusion length as a result of gettering annealings have been determined. The obtained results are useful for technology of multicrystalline Si solar cells to improve their properties.