Substituent Effect on the Electronic Properties and Morphologies of Self-Assembling Bisphenazine Derivatives

This paper reports the synthesis and characterization of novel self-assembling n-type organic semi-conductors based oil asymmetrically substituted bisphenazines with Various functional groups of different size, electron-withdrawing ability, and conjugation length. The overarching objective of this research is to tune electronic properties and morphologies of self-assembled Structures of this system simultaneously. Which offers a potentially useful platform for future optoelectronic applications. The thermal, optical, and electrochemical properties associated with different substituents were Studied by differential scanning calorimetry (DSC), UV-visible and fluorescence spectroscopy. and cyclic voltammetry (CV). Electronic properties were calculated using density functional theory, and results were compared to experimental HOMO LUMO, and energy gaps. The one-dimensional (ID) self-assembly properties of these new n-type molecules are discussed in terms of the type of peripheral substituents, alkyl side group length, and assembly conditions. This study includes extensive investigations by scanning electron microscopy (SEM) and X-ray diffraction (XRD).