The “Precursor Approach” to Patterned Fluorescence Images in Polymer Films

Abstract

In contrast to the conventional two‐step method, which involves the generation of reactive functional groups followed by incubation in a dye solution (a wet developing process), the “precursor approach” enables the rapid and cost‐effective generation of patterned images in one step, without the need for an additional wet process. By using the “precursor approach”, the fluorescence of precursor molecules in polymer films can be effectively manipulated by: (1) photoinduced removal of transient protecting groups; (2) photoinduced protonation or intramolecular proton transfer; (3) photochromism; (4) photoinduced formation of fluorophores; (5) photoinduced oxidative degradation or molecular orientation.magnified image

Aggregation-induced emissions of tetraphenylethene derivatives and their utilities as chemical vapor sensors and in organic light-emitting diodes

“…[12][13][14][15][16] A number of AIE molecules with different structures have subsequently been developed by various research groups. [1][2][3][4][5][6][7][17][18][19][20][21] Many of these AIE dyes, however, are difficult to prepare, involving multistep reactions under stringent conditions. In this work, we synthesized TPE-based luminophors by a onestep reaction in a one-pot procedure and explored the possibility of utilizing the dyes as chemical sensors and OLED components.…”

Dynamic structure and functionalization of polymer interfaces

“…For example, thin polymer films that contain fluorescence dyes have been extensively studied for use in sensors, 31,32 image patterning, 33,34 optical storage media 35,36 and solar cells. 37,38 Currently, it is known that when a film becomes thinner, the fluorescence behavior of dyes differs from the original behavior in the corresponding thick film.…”

Synthesis of a polyoxadiazole containing the 4-hydroxypyridine group and photo-induced fluorescent imaging on the polymer film

“…A number of studies on fluorescence-controlled organic systems have been undertaken to develop optical data storage [19,20]. Systems consisting of tert-butoxycarbonyl (t-Boc)-protected quinizarin or coumarin moieties with a photoacid generator (PAG) are one of the more prominent examples [21,22].…”