Ap-Phenylene Vinylene Polymer Bridged by a Triazine for Electro-Fluorescence Switching

Electrochemical fluorescence switching properties of conjugated polymers composed of triphenylamine, fluorene, and cyclic urea moieties

“…In addition, fluorescence emission shows high sensitivity on response to environmental conditions. Because of these interesting properties, the redox fluorescence switching has been subject of research for potential applications such as fluorescent imaging, sensors, displays, spectroscopy, and many other optoelectronic applications 10–26…”

Electrochemical Fluorescence Switching from a Patternable Poly(1,3,4‐oxadiazole) Thin Film

“…On the other layer, the polymer electrolyte was carefully deposited and cured under UV for 10 min to make a mechanically improved conducting medium. The polymer electrolyte solution was prepared by mixing MPEGM (0.3 g), PEGDMe (0.6 g), TATT (0.072 g), Darocure 1173 (0.06 g), Irgacure 784 (0.003 g), and LiTFS (0.06 g) according to a method reported in the literature 6. A solid‐state switching device was prepared by attaching two ITO glasses with a silver wire between them as a reference electrode.…”

“…Reversible changes of optical properties by electrochemical or photochemical conversion of molecular redox states are an important issue in optoelectronics such as in displays, sensors, or electro‐optical switches. In particular, fluorescence switching through external stimuli such as light and an electrochemical potential has been researched for potential applications in fluorescent imaging, sensors, displays, spectroscopy, and many other opto‐electronic applications 1–9. In our previous reports, fluorescence switching using tetrazine‐based fluorophore,2 triazine bridged p ‐phenylene polymer,3 and poly(methylene anthracene)s4 was demonstrated.…”

“…In the case of PMAn, both blended systems as well as a neat PMAn film were electrochemically switchable 4. Although these polymeric systems open the possibility of electrochemical fluorescence switching devices, the blended system limits further development of such reversible electro‐fluorescence into a large area display, because the electro‐active materials, which play an essential role in the switching mechanism, should be dissolved into the solid electrolyte 2–6. Applying them in such devices, it requires fluorescent polymeric materials that work under a simple fluorescent switching mechanism without a quencher, can be processed into a neat solid film, and are easily patternable.…”

A Triazine Bridged <I>p</I>-Phenylenevinylene Polymer Film for Biomolecular Patterning

“…As the PPV derivative, we explore poly 4 6 -bis phenoxy -2 -diphenylamino -s -triazine]co (2 5-bis(trimethylsilyl)-1 4-phenylenevinylene) (DTSPV), which contained s-triazine as an alternating spacer between two PPV units in the polymers. 25 Delivered by Ingenta to: Nanyang Technological …”