Advances in organic micro/nanocrystals with tunable physicochemical properties

Organic micro/nanocrystals based on small organic molecules have drawn extensive attention due to their potential application in organic field-effect transistors, electrochemical sensors, solar cells, etc. Herein, the recent advances for organic micro/nanocrystals from the perspective of molecule aggregation mode, morphology modulation, and optical property modulation are reviewed. The stacking mode and the intermolecular interaction depend on the molecular structure, which eventually determines the morphology of organic micro/nanocrystals. The morphologies of the organic micro/nanocrystals make the aggregates exhibit photon confinement or light-guiding properties as organic miniaturized optoelectronic devices. In this review, we conclude with a summary and put forward our perspective on the current challenges and the future development of morphology and optical tunable direction for the organic micro/nanocrystals.