Investigation into growth mechanism of polymer nanowires synthesized by a pulsed laser irradiation

聚合物纳米线由于其优异的电学、磁学和光学性能，在气体传感器、激光器和有机场效应晶体管中有着广泛的应用。新型聚合物纳米线的制备方法对实现未来纳米技术的应用具有重要意义。我们成功地利用亚纳秒脉冲激光辐照制备了聚合物纳米线，并测量了在常压下均匀直径聚合物纳米线生长的时间分辨图像。利用该方法还成功合成了掺杂纳米feo的PS纳米线。提出了一种合理的聚合物纳米线合成机理。在分子器件制造、超高灵敏度传感器制造等领域具有广泛的应用前景。

Polymer nanowires have much attention for their excellent use in gas sensors, lasers, and organic field-effect transistors owing to their excellent electrical, magnetic, and optical properties. The production method of novel polymer nanowires is quite important for realizing future nanotechnology applications. We have succeeded in generation of polymer nanowires by sub-nanosecond pulsed laser irradiation and time-resolved images of the growth of polymer nanowires with uniform diameters at atmospheric pressure were measured. Also nanoFeO-doped PS nanowires were successfully synthesized using this method. A plausible mechanism of polymer nanowire synthesis was proposed. It is expected to be utilized in a wide range of application fields such as in the fabrication of molecular devices and ultrahigh-sensitivity sensors in the future.