Premium
Synthesis and Photovoltaic Application of High Aspect‐Ratio TiO 2 Nanotube Arrays by Anodization
Author(s) -
Yang Yang,
Wang Xiaohui,
Li Longtu
Publication year - 2008
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1551-2916.2008.02546.x
Subject(s) - anodizing , nanotube , materials science , titanium , nanotechnology , aspect ratio (aeronautics) , chemical engineering , electrolyte , optoelectronics , composite material , carbon nanotube , aluminium , electrode , chemistry , metallurgy , engineering
The anodic formation of high‐aspect‐ratio titanium oxides (TiO 2 ) nanotube arrays on titanium foils were investigated in N , N ‐dimethyl formamide electrolyte. The influences of reaction time and applied voltage on the formation of TiO 2 nanotube arrays were examined. By tailoring the anodization conditions, high‐aspect‐ratio TiO 2 nanotube arrays with a length of 22 μm were obtained. The current work indicates that a protecting layer formed during the anodization is responsible for the formation of long TiO 2 nanotubes. A light‐to‐energy conversion efficiency of 3.4% was obtained by using dye D102. This kind of high‐aspect‐ratio TiO 2 nanotube arrays has potential applications in photovoltaic cells.