Exploring and characterizing novel aggregates /solid-state materials is the foundation of materials science. Each of these materials has unique properties that make them particularly desirable. Developing robust techniques for controlled aggregation of molecules is crucial, especially when multiple aggregates or solid forms can be derived from identical or closely related molecular constituents. This ability to manage molecular aggregation bridges the gap between solutions and solid-state materials, constituting an essential element within the overarching framework of aggregate science and should not be overlooked. (Figure ). The molecular composition at aggregate levels, in both microscopic and macroscopic scales, can be categorized into two subtypes: amorphous states and crystalline states. Thus, controllable molecular aggregation involves manipulating the formation of amorphous and crystalline states to achieve a desired orientation.