Dye-Sensitized Solar Cells with Anatase TiO₂ Nanorods Prepared by Hydrothermal Method

Table 2

Taguchi L9 orthogonal array.

Order	Factor
	A NaOH concentration (M)	B TiO2 particle size (nm)	C Autoclave temperature (°C)	D Annealing temperature (°C)
1	10 M	14 nm	180°C	450°C
2	10 M	21 nm	200°C	500°C
3	10 M	100 nm	230°C	550°C
4	8 M	14 nm	200°C	550°C
5	8 M	21 nm	230°C	450°C
6	8 M	100 nm	180°C	500°C
7	12 M	14 nm	230°C	500°C
8	12 M	21 nm	180°C	550°C
9	12 M	100 nm	200°C	450°C