Study of Excited States of Polycyclic Aromatic Hydrocarbons (PAHs)

Polycyclic aromatic hydrocarbons (PAHs) have been used as graphene’s model of electronic structure characterization [1]. Since the initial graphene experiments, it has been used in several areas, such as sensors manufactory, organic semiconductors, spintronic and non-liner optics and the study of its electronic structure is very important for these applications [2]. Therefore, the characterization of the fundamental and excited electronic states of PAHs, n-acenes (Figure 1a) and periacenes (Figure 1b) is the main goal of this work.