| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1649169 | Materials Letters | 2010 | 4 Pages |
Abstract
A wettability template-assisted process was applied to selectively deposit cadmium sulfide (CdS) nanospheres on TiO2 nanotube layers to form uniformly coupled CdS/TiO2 semiconductor heterojunction micropatterns. The effect of deposition time on the size and morphology of the as-prepared CdS/TiO2 array patterns was investigated. It is shown that the CdS nanocrystals with a highly ordered, hierarchically porous structure in nano-micro dual scales could be selectively grown within the superhydrophilic regions. The patterned CdS/TiO2 heterojunctions have demonstrated enhanced photo-response under both UV and visible light irradiation. This novel template patterning technique, which is based on wettability contrast, can be applied to a broad range of technological areas, such as sensor arrays and optoelectronic devices.
Related Topics
Physical Sciences and Engineering
Materials Science
Nanotechnology
Authors
Yuekun Lai, Zequan Lin, Zhong Chen, Jianying Huang, Changjian Lin,