A Combined Effect of Plasmon Energy Transfer and Recombination Barrier in a Novel TiO₂/MgO/Ag Working Electrode for Dye-Sensitized Solar Cells

Table 1

Optimization of the TiO₂/MgO/Ag composite films by varying the MgO thin film thickness and the Ag nanoparticles size for enhanced efficiency of the DSSCs.

Silver nanoparticles size (nm)	Efficiency of DSSCs (%)			Efficiency of bare-TiO2 DSSCs (%)
	Magnesium oxide film thickness (nm)
	0.08	0.10	0.46
4.40	5.1 ± 0.1	5.2 ± 0.1	2.6 ± 0.2	3.8 ± 0.1
19.20	4.1 ± 0.2	4.1 ± 0.1	2.0 ± 0.3
38.60	3.7 ± 0.1	3.8 ± 0.2	1.1 ± 0.6