Triindole and hexabromotriindol's self-assemble behavior on the substrate from solution has been investigated. Through changing the polarity of solvents, various nanostructures have been prepared in a controllable manner. Hexabromotriindol could self-assemble into uniform nanowires with the length up to hundreds microns. Experiment data reveal that molecules grow from solution in a nucleation and growth model. DMF seems playing important role on stabilize system and also increasing intermolecular interaction. The highly ordered structures on the surface in a controllable manner are expected to be applied in fabrication of organic electrical devices.
Acknowledgment
For financial support of this research, we are grateful for the support of the Fundamental Research Funds for the Central Universities (13CX05011A), China Postdoctoral Science Foundation (2012M521383), and National Natural Science Foundation of China (Grant 21176259).