Fabrication, Characterization, and Optimization of CdS and CdSe Quantum Dot-Sensitized Solar Cells with Quantum Dots Prepared by Successive Ionic Layer Adsorption and Reaction

Table 5

The energy gap and size of QDs and QDSSC performance parameters for CdS QDs prepared using various dipping times.

Dipping time	Band gap energy (eV)	Estimated QD diameter (nm)	𝐽SC (mA/cm^2)	𝑉OC (V)	Fill factor (%)	Efficiency, 𝜂 (%)
1 min	2.84	4.1	5.15	0.410	37.5	0.79
2 min	2.82	4.1	6.43	0.480	25.5	0.79
3 min	2.77	4.3	7.92	0.405	35.1	1.13
4 min	2.70	4.7	10.09	0.435	32.5	1.43
5 min	2.38	8.6	11.42	0.565	25.9	1.67
8 min	2.45	7.0	4.31	0.395	27.7	0.47
10 min	2.38	8.6	6.70	0.465	21.1	0.66