For the thin films, MPcs tend to form ordered structures with red-shifted and broadened absorption bands, and the intermolecular interactions affect the shape and position of the absorption bands.

• 在金属酞菁制备成薄膜时，它们会趋向于形成规则排列的分子晶体，受分子间相互作用的影响，它的吸收带会红移。