Figure 3
From: An Extended Phenacene-type Molecule, [8]Phenacene: Synthesis and Transistor Application

(a) XRD pattern of [8]phenacene thin film on SiO2/Si substrate. (b) <d001> as a function of the number of benzene rings. (c) Absorption spectra of phenacene thin films and (d) enegy diagrams of phnacene molecules.