Department of Chemistry, University of California, Berkeley, California 94720, USA.
Nano Lett. 2009 Nov;9(11):3820-5. doi: 10.1021/nl9020123.
The mechanism of tuning charge transport in electronic devices has recently been implemented into the nanofluidic field for the active control of ion transport in nanoscale channels/pores. Here we report the first synthesis of longitudinal heterostructured SiO(2)/Al(2)O(3) nanotubes. The ionic transport through these nanotube heterojunctions exhibits clear current rectification, a signature of ionic diode behavior. Such nanofluidic diodes could find applications in ion separation and energy conversion.
最近，人们将调节电子设备中电荷输运的机制应用于纳米流体领域，以实现对纳米尺度通道/孔隙中离子输运的主动控制。在这里，我们首次合成了具有纵向异质结构的 SiO(2)/Al(2)O(3) 纳米管。这些纳米管异质结中的离子输运表现出明显的电流整流，这是离子二极管行为的特征。这种纳米流体二极管可以应用于离子分离和能量转换。
