The Study of Metal Sulfide as Efficient Counter Electrodes on the Performances of CdS/CdSe/ZnS-co-sensitized Hierarchical TiO2 Sphere Quantum Dot Solar Cells

Table 1 Summary of the measured photovoltaic parameters of the assembled HTS/CdS/CdSe/ZnS having Pt, CuS, and CZT(S,Se) counter electrodes

Cell structures	J _sc (mA cm⁻²)	V _oc (mV)	FF	Eff (%)
HTS/CdS/CdSe/Pt	6.05	242	0.20	0.37
HTS/CdS/CdSe/CuS	7.12	683	0.71	3.46
HTS/CdS/CdSe/CZTS	7.04	674	0.40	1.88
HTS/CdS/CdSe/CZT(S_0.5Se_0.5)₄	7.11	665	0.55	2.64
HTS/CdS/CdSe/CZTSe	7.68	638	0.42	2.06