SOLAR CELL INCLUDING SPUTTERED REFLECTIVE LAYER AND METHOD OF MANUFACTURE THEREOF

摘要

Solar cells and methods for their manufacture are disclosed. An exemplary method may include providing a semiconductor substrate and introducing dopant atoms to a front surface of the substrate. The substrate may be annealed to drive the dopant atoms deeper in the substrate to produce a p-n junction while also forming front and back passivation layers. A reflective surface is sputtered on the back surface of the solar cell. It protects and generates hydrogen to passivate one or more substrate-passivation layer interfaces at the same time as forming an anti- reflective layer on the front surface of the substrate. Fire-through of front and back contacts as well as metallization with contact connections may be performed in a single co-firing operation. Associated solar cells are also provided.