RF Magnetron Sputtering Aluminum Oxide Film for Surface Passivation on Crystalline Silicon Wafers
Figure 1
Minority carrier lifetime mappings and PL images of mm2 CZ wafers passivated by RF magnetron sputtered aluminum oxide at different sputtering powers and after a 30 min postannealing at 500°C in N2 ambient. Upper row: minority carrier lifetime mappings. Lower row: PL images.