Hydrothermal crystallization and modification of surface hydroxyl groups of anodized TiO2 nanotube-arrays for more efficient photoenergy conversion

• Published in: Electrochimica acta Vol. 78; pp. 236 - 243
• Main Authors: Kuo, Yu-Yen, Li, Tze-Huei, Yao, Jing-Neng, Lin, Chiung-Yuan, Chien, Chao-Hsin
• Format: Journal Article
• Language: English
• Published: Elsevier Ltd 01.09.2012
• Subjects: Anodizing; Crystallization; Dye-sensitized solar cells; Hydrothermal; Hydroxyl group; Nanocomposites; Nanomaterials; Nanostructure; Nanotubes; TiO2 nanotube; Titanium; Titanium dioxide; Hydroxyl group; TiO2 nanotube; Dye-sensitized solar cells; Hydrothermal; Crystallization

[Display omitted] ► Hydrothermally crystallized nanotubes show improved cyrstallinity. ► Basic hydrothermal pH induces morphological transformation of the nanotubes. ► Acidic hydrothermal pH induces transition of surface hydroxyl groups. ► Adsorption of bipyridyl dye on nanotubes is greatly influenc...