Fig. 1: Schematic illustration of 3Abf-Ofn cocrystal and 3Abf-Ofn@PMMA film.

a Chemical structures and self-assembled patterns of 3-aminodibenzofuran (3Abf), Octafluoronaphthalene (Ofn), 3Abf-Ofn cocrystal and photoproduct bis(benzofuran-3-yl) azo (Bfa). b Dynamically tunable fluorescence of 3Abf-Ofn@PMMA film.