Abstract: Individual sodium titanate nanowire-based device is fabricated via e-beam lithography techniques. The authors measure their electrical transport properties in air and in vacuum respectively and find that the electrical transport of sodium titanate nanowires devices is affected. This is attributed to oxygen adsorption on the surface of nanowire. In addition, the authors study ultraviolet (UV) light response of sodium titanate nanowire-based devices and find that UV light may induce a large photoconductivity. The work shows that sodium titanate nanowires may be used potentially as gas sensors and photoelectric sensors.

Key words: nanowire, nanodevice, e-beam lithography techniques, photoconductivity

摘要： 利用电子束光刻技术制作了基于钛酸钠纳米线的纳米器件。分别在大气和真空两种环境下测量了该器件的电学特性，发现器件所处的气体环境可以影响其电传输特性，这可能是由于纳米线表面的氧分子吸附造成的。另外，还研究了紫外光（UV）照射纳米线对器件电学特性的影响，发现紫外光可以使纳米线产生很大的光电导。研究表明上述纳米器件可用作气体探测器和光电探测器。

关键词: 纳米线, 纳米器件, 电子束光刻技术, 光电导