Aggregation-induced emission materials based on restriction of intramolecular vibration

Aggregation-induced emission (AIE) is a photophysical phenomenon wherein luminescent materials exhibit weak emission in solution but strong emission after aggregation. This phenomenon has garnered significant attention in the realm of multifunctional luminescent materials. Specifically, AIE molecules, which operate through the restriction of intramolecular vibration (RIV) mechanism, have emerged as a pivotal constituent of AIE materials, captivating the interest of both academia and industry. This review aims to present a comprehensive overview of recent advancements in the domain of RIV-type AIE and its associated areas. It encompasses a survey of the classifications, molecular design strategies, and mechanisms underlying RIV-type AIE molecules. Furthermore, the review delves into the prospects and challenges encountered in the realm. We hope this review can provide novel insights into the theory, materials, and applications in the field of biochemistry and organic photoelectric.