This paper shows that nanostructuring in colloidal solutions at room temperature can be used to obtain various polymorphic forms of Mg phthalocyanine, including the X form. The latter is promising for practical use as an organic semiconductor having high photoelectric sensitivity in the visible and near-IR regions.
I. A. Akimov, I. Yu. Denisyuk, A. M. Meshkov , and A. V. Gorelova, "Polymorphic modifications of Mg phthalocyanine nanoparticles and their optical absorption spectra," J. Opt. Technol. 70, 67-71 (2003)