Multilayer Deposition of Octakis(octyloxy) Phthalocyanine Observed by Scanning Tunneling Microscopy, Scanning Electron Microscopy, Transmission Electron Microscopy, and X-ray Diffraction

Acicular crystal growth of phthalocyanine derivative with eight octyl group has been studied. The observation by scanning tunneling microscopy showed seed crystals grown on graphite substrate and scanning electron microscope image showed rod-like structure, both of which have been confirmed by transmission electron microscopy. The X-ray diffraction pattern showed two peaks and a broad peak, attributed to c-axis stacking and long aliphatic chains randomly arranged in the columnar mesophase.