Antimony trifluoride-incorporated SnO2 for high-efficiency planar perovskite solar cells

For the first time, the low-cost material SbF 3 was doped into commonly used SnO 2 as an electron-transport layer. After SbF 3 doping, the optimized PCE of the perovskite solar cell was significantly enhanced from 19.89% to 21.42%.