Summary of the PV performance of DSSCs using graphene-based CEs.

Materials	Device structure	Cell performance					Ref.
		R CT (Ω cm2)	J SC (mA cm2)	V OC (V)	FF (−)	η (%)
Graphene	FTO/TiO2/N719/I−/I3−/graphene	38.0	14.3	0.54	0.653	5.69	819
TiN/graphene	FTO/TiO2/dye/I−/I3−/TiN-graphene	5.67	12.34	0.73	0.643	5.78	802
Pt/graphene	FTO/TiO2/N719/I−/I3−/Pt-graphene	0.67	12.06	0.79	0.67	6.35	813
GNPs	FTO/TiO2/Y123/Co2+/3+/GNPs	0.70	12.70	1.03	0.70	9.30	796
Pt-RGO	FTO/TiO2/dye/I−/I3−//Pt-RGO	—	14.10	0.72	0.67	6.77	820
GNSs/AC	FTO/TiO2/N719/I−/I3−/GNSs-AC	0.5 ÷ 0.8	13.30	0.76	0.738	7.50	821
NGNPs	FTO/TiO2/dye/Co(III/II)/NGNPs	1.73	13.83	0.883	0.742	9.05	801
GNTs/graphene-Rib	FTO/TiO2/N719/I−/I3−/GNT/graphene-Rib	—	16.73	0.730	0.670	8.23	806
GQD-PPy	FTO/TiO2/N719/I−/I3−/GQD-doped PPy	—	14.36	0.723	0.580	5.27	822
Au/GNP	FTO/TiO2/ADEKA-1/LEG4/Co2+/3+/Au/GNP	—	19.55	0.995	0.776	14.7	829
NGNPs	FTO/TiO2/YD2-o-C8/Co2+/3+/NGNPs	0.45	13.33	0.870	0.720	8.30	823
aGNP	FTO/TiO2/N719/I−/I3−/aGNP	2.68	22.54	0.73	0.47	7.7	824
Pt/GONF	FTO/TiO2/Y123/Cu +/Cu + +/Pt/GONF	1.1	14.01	1.02	0.665	9.5	825
PEDOT/RGO	FTO/TiO2/N719/I−/I3−/PEDOT-RGO	18.17	15.82	0.73	0.67	7.79	826
3D graphene networks/RGO	FTO/TiO2:RGO/N719/I−/I3−/3D graphene networks/RGO	9.61	21.0	0.75	0.661	9.79	827
RGO QDs	FTO/TiO2/N719/I−/I3−/RGO QDs	64.8	6.1	0.784	0.52	2.5	828
GO	FTO/TiO2/N719/I−/I3−/GO	52.26	11.83	0.66	0.715	5.6	829
CVD graphene/FLG	FTO/TiO2/Y123/Co2+/3+/FLG/CVD graphene	—	11.23	0.958	0.47	5.09	406
GNPs	FTO/TiO2/SM315Co(bpy)3]2+/3+/GNPs	—	18.1	0.91	0.78	13.0	830