Low-Cost Flexible Nano-Sulfide/Carbon Composite Counter Electrode for Quantum-Dot-Sensitized Solar Cell

Table 1 Photovoltaic parameters of tested QDSCs, together with R_□ and R_ct value of various counter electrodes

Counter electrode	J_sc(mA cm⁻²)	V_oc(mV)	FF	η(%)	R_□(Ω/□)	R_ct(Ω cm²)
Nano-Cu₂S/C	10.68	497	0.581	3.08	0.044	0.063
Graphite	5.75	289	0.394	0.66	0.038	0.749
Au/FTO	7.57	484	0.269	0.98	0.24	0.196
Pt/C	5.93	458	0.376	1.02	0.042	1.088
Pt/FTO	6.73	374	0.271	0.68	0.015	0.886
Carbon/C	7.25	425	0.571	1.76	0.066	0.166
Carbon/FTO	6.48	387	0.495	1.24	14.6	0.795