Multicolor Patterning Inside a Metal-Organic Framework

摘要

Three-dimensional (3D) patterning of fluorescent structures in metal-organicframeworks (MOFs) is useful for fabricating MOF-based devices for sensingand data storage. This work creates 3D multicolor patterns in an MOF crystalby sequentially printing different substructures with different dye moleculesincorporated. Printed multicolor 3D arrays inside MOF crystal are used for 3Doptical data storage. Each color dot can represent four-digit information 0, 1,2, 3 as compared to the 0,1 by a bit, using three colors plus the blank toconvey the information. Through the combination of different initiatormolecules of different emission colors, the data storage density is expected toincrease further.