Figure 6From: Preparation, characterization, and application of titanium nano-tube array in dye-sensitized solar cellsXRD patterns of (a) as-prepared TNA, (b) annealed-TNA, (c) TiCl 4 -treated TNA, and (d) TnB-treated TNA. XRD, X-ray diffraction; TNA, TiO2 nano-tube array; TNA-TnB, TiO2 nano-tubes after titanium (IV) n-butoxide treatment; TNA-TiCl4, TiO2 nano-tubes after titanium tetrachloride treatment; A, anatase diffraction peak.Back to article page