A Suitable Polysulfide Electrolyte for CdSe Quantum Dot-Sensitized Solar Cells

Table 4

Performance parameters of CdSe QDSSCs with electrolytes having various amounts of KCl additive. Electrolyte used: 0.5 M Na₂S, 0.1 M S in ethanol/water (8 : 2 by volume).

KCl concentration in the electrolyte	𝐽SC (mA/cm^2)	𝑉OC (V)	Fill factor (%)	Efficiency, 𝜂 (%)
0 M	7.08	0.435	43.0	1.32
0.1 M	6.60	0.440	36.0	1.05
0.2 M	6.27	0.460	39.0	1.12
0.4 M	4.22	0.390	35.0	0.64
0.1 M NaOH	5.83	0.420	36.0	0.88