Fig. 9

The calculated real part of optical conductivity for (a) Si-based, (b) Ge-based, and (c) Sn-based perovskites using the HSE09 method; the imaginary part of optical conductivity, (d) Si-based, (e) Ge-based, and (f) Sn-based perovskites.

The calculated real part of optical conductivity for (a) Si-based, (b) Ge-based, and (c) Sn-based perovskites using the HSE09 method; the imaginary part of optical conductivity, (d) Si-based, (e) Ge-based, and (f) Sn-based perovskites.