Research Progress in Covalent Organic Frameworks for Photoluminescent Materials

Covalent organic frameworks (COFs) are an emerging kind of crystalline porous polymers which present the precise integration of organic building blocks into extensible structures with regular pores and periodic skeletons. The diversity of organic units and covalent linkages makes COFs a rising materials platform for the design of structure and functionality. In this review, we summarize the recent research progress in developing COFs for photoluminescent materials. We highlight structural and functional design strategies, and identify fundamental problems that need to be solved in conjunction with potential applications from perspectives of photoluminescent materials.