The present work deals with unsubstituted zinc phthalocyanine (ZnPc), seeking to develop an advanced algorithm for solution-processed ZnPc films. Specifically, it reports on a detailed AFM study of ZnPc crystallites deposited from solution in the binary cyclopentanone–3-dimethylamino-1-propanol system. The crystallization behavior of ZnPc has been radically improved by means of simple aromatic substances added to the dye solution before processing. Varying the nature and quantity of an aromatic additive allows one to change the size, the habit, and even the dimensionality of ZnPc crystallites. Properly modified crystallites are elastic and capable of spontaneous spreading over a solid support. Besides, two alternative kinds of interparticle interactions, namely close agglomeration and seamless fusion, have been explicitly differentiated by AFM phase imaging. The modifying effect of aromatic substances on ZnPc is briefly discussed in terms of supramolecular intercalation of small organic molecules into growing dye crystallites.

中文翻译：

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用于薄膜沉积的未取代的酞菁锌微晶

目前的工作涉及未取代的酞菁锌（ZnPc），试图为溶液加工的ZnPc薄膜开发一种先进的算法。具体来说，它报道了在二元环戊酮–3-二甲基氨基-1-丙醇系统中从溶液中沉积的ZnPc晶体的详细AFM研究。ZnPc的结晶行为已经通过在加工前添加到染料溶液中的简单芳香族物质得到了根本改善。改变芳香族添加剂的性质和数量可以改变ZnPc晶体的大小，习性，甚至尺寸。适当修饰的微晶具有弹性，能够自发散布在固体支持物上。此外，还有两种替代的粒子间相互作用，即紧密团聚和无缝融合，通过AFM相位成像已明显区分。简要讨论了芳香族物质对ZnPc的改性作用，即将小有机分子超分子嵌入到正在生长的染料微晶中。