. 2019 Jul 22;3(11):1900050. doi: 10.1002/gch2.201900050

Table 8.

Ge‐based perovskites and their photovoltaic parameters

Light absorber	E _g	V _OC	J _SC	FF	SPCE	Architecture	Ref.
MAGeI₃	2.0	0.15	4.0	0.30	0.2	FTO/c‐TiO₂/mp‐TiO₂/absorber/Spiro‐OMeTAD/Au	144
CsGeI₃	1.63	0.07	5.7	0.27	0.11	FTO/c‐TiO₂/mp‐TiO₂/absorber/Spiro‐OMeTAD/Au	144
CsGeI₃	–	0.57	10.49	0.53	3.2	FTO/mp‐TiO₂/CsGeI₃/P3HT Au	236