International Journal of Photoenergy / 2014 / Article / Fig 4

Research Article

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

Figure 4

SEM images of cross-section of double-layer composite film (a) and TNT-arrays film (b).
602692.fig.004a
(a)
602692.fig.004b
(b)

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