Enhancement and limits of the photoelectrochemical response from anodic TiO2 nanotubes -: art. no. 243114
Enhancement and limits of the photoelectrochemical response from anodic TiO2 nanotubes -: art. no. 243114
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DOI：
10.1063/1.2140085
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发表时间：
2005-12-12
影响因子：
4
通讯作者：
Schmuki, P
中科院分区：
文献类型：
--
作者：
Beranek, R;Tsuchiya, H;Schmuki, P
采用自组织阳极氧化法在纯钛表面生长了TiO2纳米管。所述层由长度类似于2 μ m、直径类似于100 nm和壁厚类似于10 nm的单个管的阵列组成。这些层可以被退火成强烈增加光电流效率的异质结结构。此外，在某些条件下，纳米管层可以表现出显着增强的光电流相比，紧凑的双金属层。光响应的这些强烈变化归因于管壁内的空间电荷层的特性。(c)2005年美国物理学会。
TiO2 nanotube layers were grown on titanium by a self-organized anodic oxidation. The layers consist of arrays of individual tubes with a length of similar to 2 mu m, a diameter of similar to 100 nm, and a wall thickness of similar to 10 nm. These layers can be annealed to an anatase structure which strongly increases the photocurrent efficiency. Moreover, the nanotube layers can-under certain conditions-exhibit a drastically enhanced photocurrent compared to compact anatase layers. These strong changes in the photoresponse are attributed to the characteristics of the space charge layer within the tube wall. (c) 2005 American Institute of Physics.