Self-Assembly of Aggregation-Induced-Emission Molecules.

Area of Science:

• Materials Science
• Chemistry

Background:

• Aggregation-induced emission (AIE) is a phenomenon where molecules become luminescent upon aggregation, contrasting with aggregation-caused quenching (ACQ).
• AIE materials offer robust luminescence in aggregated and solid states, enabling applications in imaging, sensing, medical therapy, and organic electronics.
• The self-assembly of AIE molecules into well-defined emissive nanostructures is highly desirable for advanced applications.

Purpose of the Study:

• To summarize recent strategies for achieving the self-assembly of AIE molecules.
• To categorize these strategies into distinct approaches for clarity and future research inspiration.

Main Methods:

• Review and categorization of existing literature on AIE molecule self-assembly.
• Classification of self-assembly strategies into covalent molecular design and noncovalent supramolecular interactions.

Main Results:

• Identified two primary classes of strategies for AIE molecule self-assembly: covalent molecular design and noncovalent supramolecular interactions.
• Highlighted the challenges in self-assembling nonplanar AIEgens into well-defined structures.

Conclusions:

• The development of effective strategies for controlling AIE molecule self-assembly is crucial for unlocking their full potential in various technological fields.
• Further research into both covalent and noncovalent approaches is expected to drive innovation in AIE-based materials and devices.