Spectral and self-assembly properties of a series of asymmetrical pyrene derivatives

A series of pyrene derivatives with different asymmetrical substituents were successfully synthesized and characterized. The geometrical electronic structures of the asymmetrical pyrene derivatives were performed by density functional theory (DFT) calculations. The results of photophysical spectra and electrochemical analysis indicated that the optical or electric properties of the pyrene derivatives could be tuned by adjust the π-conjugation lengths of the substituents. Furthermore, through a phase exchange self-assembly method, the highly organized morphologies were observed by SEM.

Graphical abstractA series of pyrene derivatives with different asymmetrical substituents were successfully synthesized and characterized. Results of this work revealed the application of asymmetrical discoid molecules in organic optoelectronic devices.Figure optionsDownload full-size imageDownload as PowerPoint slide