Optimum power conversion efficiency of 1.49% was obtained in a DSSC with the ZnO nanowires length of 3 μm.
Our experimental results demonstrated that an optimum power conversion efficiency of up to 5.30% can be achieved by the ITO/CuInS2(2)/Al2O3/(cellH3)PbI3/Ag cell.
Our findings suggest that matching the individual resonances of the fiber optics cable and the piezo-scanner alone, leads to optimum electromechanical conversion efficiency.
It can be seen that an optimum energy conversion efficiency achieved by the CdS(4 /Ag2S/TiO2/ITO electrode is 3.46%, which is about 2.5 times that (1.39%) of the CdS(4 /TiO2/ITO electrode.
In particular, the optimum power conversion efficiency of 2.91% is obtained at the ratio of NP/NS = 3 7, and the trend of η is generally consistent with that of Jsc.
The optimum power conversion efficiency was about 1.95% under AM 1.5 G illumination (100 mW cm−2), with a short circuit current density, open circuit voltage, and fill factor of 6.11 mA cm−2, 0.562 V and 0.57, respectively.
The optimum biodiesel conversion efficiency obtained was 93.55% by 1 vol.% of sulfuric acid with 12 1 of methanol to oil ratio at 60 °C and 1200 rpm agitation rate for 3 h.
It is obvious from Figure 5 that the photovoltaic performance of the solar cells firstly increased in the initial 7 cycles, the optimum energy conversion efficiency was obtained after 7 cycles, with a short-circuit photocurrent of 4.22 mA cm−2, an open-circuit photovoltage of 0.36 V, a fill factor of 0.31, and an overall power conversion efficiency of 0.46%, respectively.
The composites of cobalt nitride and mesoporous carbon are superior to the counterparts of cobalt oxide and mesoporous carbon in catalyzing the triiodide reduction, and the dye-sensitized solar cell with the composites achieves an optimum power conversion efficiency of 5.26%, which is comparable to the one based on the conventional Pt counter electrode (4.88%).
An optimum light-to-electricity conversion efficiency of 5.4% in the presence of a layer of CaCO3 has been obtained which is 3.2 times enhancement over the cell prepared without CaCO3.
