Fabrication of Polydiacetylene Nanowires by Associated Self-Polymerization and Self-Assembly Processes for Efficient Field Emission Properties

摘要

We have shown that the associated self-polymerization and self-assembly induces production of polydiacetylene nanowires, which provides a facile and effective method for fabricating stable low-dimensional nanostructures. The resulting nanowires show excellent field emission properties, which exhibit that the turn-on field of the PDA nanowires is 8.2 V/μm at 10 μA/ cm~2 and the maximum current density is larger than 5 mA/cm~2 at an applied field of 15 V/μm. This work presents a new concept to fabricate conducting polymer nanowires, and it may have great potential for further applications on fabricating supramolecular materials-based conducting polymer for various fields, such as sensors, optical materials, nanotips in field emission devices, etc.