Fig. 3. (Color online) (a) Calculated optical absorption coefficients of CH
3NH
3PbI
3 (MAPbI
3) and BaZrS
3-based perovskite alloys. (b) Calculated maximum efficiencies of MAPbI
3 and BaZrS
3-based perovskite alloys as a function of absorber thickness. (c) the best research solar cell efficiencies for different photovoltaic materials, and theoretical calculation values of halide perovskite (MAPbI
3) and chalcogenide perovskite (BaZr
0.5Ti
0.5S
3) solar cells [
11,
33]. (a) and (b) adapted with permission from Ref. [
33]. Copyright 2016 American Chemical Society.