科研之友
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摘要
With this study an approach to engineering of new air-suspended and interconnected networks of bundled nanotubes is introduced and demonstrated based on multi-electrode dielectrophoretic assembly. The network engineered from monodisperse multi-walled nanotubes that were vapor-deposited inside the pores of alumina templates are found to be mechanically stable, highly conductive and non-rectifying. The photo-conduction tests have further revealed a moderate light sensitivity attributed to photocarrier generation in individual tubes. A model to explain both the effect of photocurrent saturation that has been observed at larger intensities and the photocurrent-voltage dependences is presented and discussed. The engineered nanotube networks are expected to be suitable for a plethora of applications ranging from optical detection, electro-chemical/analyte sensing to scaffolds for tissue engineering and bio-medical research.
- 出版日期2009-9
