Figure 7.

Phthalocyanine micronanocrystals (a) upon self-deprotection in the absence of any ligands, rectangular shaped microcrystals are obtained. When trifluoroacetic acid is used, dependent on the added ligand, (b) nanowires or (c) monodisperse nanospheres (with the addition of acetic anhydride) were achieved. (d) Transfer characteristics of a phthalocyanine nanowire transistor. (e) Schematic drawing of the FET structure, with an SEM image showing the drop-cast nanowires between the gold source–drain electrodes.