Efficient Semitransparent Perovskite Solar Cells Using a Transparent Silver Electrode and Four-Terminal Perovskite/Silicon Tandem Device Exploration

Table 1

Photovoltaic parameters of the perovskite top cell and Si bottom cell, with reference to opaque perovskite and Si solar cells. The overall efficiency is the sum of PCE for the corresponding top and bottom cells.

Photovoltaic parameters			JSC (mA/cm^2)	VOC (V)	FF	PCE (%)
Four-terminal perovskite/silicon tandem solar cell
ITO side	Perovskite top cell	Reverse	18.21	0.98	0.74	13.38
		Forward	17.60	0.99	0.75	13.10
	Si bottom cell	a.u.	9.17	0.56	0.71	3.65
Overall PCE						17.03/16.75
Ag side	Perovskite top cell	Reverse	12.0	0.94	0.74	8.34
		Forward	11.8	0.94	0.73	8.07
	Si bottom cell	a.u.	8.29	0.55	0.72	3.26
Overall PCE						11.60/11.33
Reference solar cells
Opaque perovskite cell		Reverse	20.60	0.99	0.79	16.2
		Forward	20.6	0.98	0.78	15.8
Silicon solar cell		a.u.	36	0.59	0.67	14.2