Figure 1
From: Device simulation of highly efficient eco-friendly CH3NH3SnI3 perovskite solar cell

(a) Lead-free CH3NH3SnI3 solar cell structure. (b) Energy level diagram.
From: Device simulation of highly efficient eco-friendly CH3NH3SnI3 perovskite solar cell

(a) Lead-free CH3NH3SnI3 solar cell structure. (b) Energy level diagram.