Table 3.

Device performance with different absorbers and HTM layers.

Absorber Layer	Voc (volt)	$\mathbf{Jsc}(\mathbf{mA}/{\mathbf{cm}}^2)$	FF (%)	PCE (%)
PBDB-T:ITIC	0.9148	25.71	58.45	13.74
PTB7:PC71BM	0.9070	18.12	61.30	10.07
HTM Layer
GO	0.9148	25.71	58.45	13.74
PEDOT:PSS	0.9157	22.63	59.52	12.33
PEDOT:PSS/GO	0.9300	19.07	69.60	12.34
HTM Free	0.8248	18.33	56.90	8.60