Precise Synthesis of Organic Heterostructures via the Synergy Approach of Polymorphism and Cocrystal Engineering for Optical Applications

Comprehensive Summary Organic heterostructures that can integrate the physiochemical properties of two or more substances have attracted widespread attention in the field of optoelectronics. However, the epitaxial growth process between different organic material molecules is unpredictable, and the precise synthesis of organic heterostructures is still particularly challenging. Herein, through the synergy approach of polymorphism and cocrystal engineering, a series of organic branched heterostructures have been successfully prepared. Interestingly, by simply adjusting the solvent ratio, different crystalline phases of perylene microplates can be epitaxially grown on the perylene-OFN cocrystal microwires, which provides a feasible approach for the preparation of organic heterostructures. Meanwhile, these as-prepared organic branched heterostructures can realize multi-channel and multi-color emission, and act as optical logic gates, which promotes the multifunctional integrated optoelectronics.

Automated summary

Organic heterostructures that integrate the physiochemical properties of multiple substances are highly sought after in the field of optoelectronics. However, the unpredictable epitaxial growth process between different organic material molecules has made the precise synthesis of these structures challenging. In this study, a series of organic branched heterostructures were successfully prepared using a synergy approach of polymorphism and cocrystal engineering. By adjusting the solvent ratio, different crystalline phases of perylene microplates could be grown on perylene-OFN cocrystal microwires, providing a feasible method for the preparation of organic heterostructures. Furthermore, these structures exhibited multi-channel and multi-color emission and could act as optical logic gates, promoting the development of multifunctional integrated optoelectronics.