TiO₂ Nanotube Arrays Composite Film as Photoanode for High-Efficiency Dye-Sensitized Solar Cell

Table 1

Comparisons of the photovoltaic performances and adsorbed dye amount of DSSCs made from P25 nanoparticle film, TNT-arrays films, and double-layer composite film. All measurements were performed under AM 1.5 one-sun light intensity of mW cm⁻², and the thickness of all the films was controlled to be similar (ca. 24 μm).

Photoanode	𝐽sc (mA cm^−2)	𝑉oc (V)	FF	𝜂 (%)	Adsorbed dye amount (×10^−8 mol cm^−2)
P25 particle	10.66	0.60	0.64	3.65	3.75
TNT-arrays	12.78	0.67	0.52	5.18	3.54
Double-layer	15.88	0.65	0.61	6.32	4.43