Red Microfluidic Electrogenerated Chemiluminescence Device Using Tetraphenyldibenzoperiflanthene as a Guest Molecule

We evaluated the performance of a red microfluidic electrogenerated chemiluminescence (ECL) device using tetraphenyldibenzoperiflanthene (DBP) as a fluorescent guest. 5,6,11,12-Tetraphenylnaphthacene (rubrene), which is a well-known yellow fluorescent material, was used as a host molecule and dissolved in an organic solvent with the guest. The microfluidic ECL device with the DBP-doped rubrene solution exhibited a bright red emission originated from DBP with a maximum luminance of 62.0 cd/m 2 at a direct current voltage of 5.5 V. By contrast, when the rubrene host was absent from the solution, the ECL emission of DBP was found to be significantly weak. Electrochemical properties of rubrene and DBP were also evaluated by cyclic voltammetry to discuss the emission mechanism.

Automated summary

In this study, we evaluated the performance of a red microfluidic ECL device using DBP as a fluorescent guest. By dissolving rubrene, a well-known yellow fluorescent material, in an organic solvent as the host molecule, the solution with DBP-doped rubrene showed a bright red emission. The electrochemical properties of rubrene and DBP were also analyzed by cyclic voltammetry to understand the emission mechanism.