Impact of solvents on the extraction and purification of vegetable dyes onto the efficiency for dye-sensitized solar cells

Sustainable Energy Research

Table 1 Photoelectrochemical parameters of the DSSCs using extracts of vegetable dyes extracted with ethanol at pH 1, and Ru (N-719) dye as photosensitizers

Vegetable dye	λ_max (nm)^b	J_sc (mA cm⁻²)^a	V_oc (V)^a	FF^a	PCE (%)^a
Ataco	665	0.06 ± 0.00	0.48 ± 0.067	0.66 ± 0.05	0.018 ± 0.003
Achiote	454.5	0.06 ± 0.02	0.45 ± 0.01	0.50 ± 0.78	0.013 ± 0.006
Berenjena	413	0.04 ± 0.01	0.40 ± 0.12	0.56 ± 0.11	0.008 ± 0.003
Flor de Jamaica	520	0.382 ± 0.061	0.478 ± 0.220	0.580 ± 0.025	0.109 ± 0.017
Mora	525	0.28 ± 0.07	0.48 ± 0.02	0.51 ± 0.03	0.069 ± 0.020
Mortiño	536.5	0.557 ± 0.147	0.484 ± 0.006	0.664 ± 0.043	0.175 ± 0.034
Rabano	504.5	0.07 ± 0.01	0.39 ± 0.02	0.55 ± 0.06	0.015 ± 0.001
Tomate de arbol	543	0.10 ± 0.02	0.44 ± 0.03	0.52 ± 0.04	0.023 ± 0.003
Ru (N719)	521.5	19.370 ± 2.053	0.750 ± 0.018	0.580 ± 0.023	8.39 ± 0.54