Facile Synthesis of Luminescent Organic Nanorods Byair Oxidation of Para-Substituted Anilines
Oxidation of aniline provides variety of useful productssuch as dyes, explosives, and polymers. In this study, novel luminescent organic nanorods (ONs) were synthesized through one-step air oxidation of para-substituted anilines. The ONs present highly crystalline one-dimensional (1D) rod-like structures without using any shape-guiding surfactants due to the ortho-coupling reaction of aniline and π-π stacking forces between the phenazine-like structures. Using absorption spectroscopy, photoluminescence spectroscopy, time-correlated single photon counting, and time-dependent density functional theory calculation, it is revealed that the phenazine-like structures in the ONs are responsible for their highly bright, photostable, red luminescence. To demonstrate the potential of these ONs as a luminescent material, red-light-emitting devices employing color-converting layers based on ONs were successfully fabricated. This study provide a new insight for the preparation of luminescent organic nanomaterials. Furthermore, the simple synthesis and excellent optical properties of these novel ONs demonstrate their potential for optoelectronic applications.This work was supported by the KIST Institutional Program (Project No. 2E28200-18-018).
Keywords- Semiconductor Nanostructures, Photon Emission, Organic nanomaterial,Aniline oxidation, Template-free synthesis