Growth, structural, optical, and thermal behavior of bibenzyl organic single crystal for scintillator applications

Destructive quantum interference in meta-oligo(phenyleneethynylene) molecular wires with gold–graphene heterojunctions

“…However, to eliminate solvation effects and thus to better estimate the HOMO-LUMO gap, the spectra were also recorded in the solid state using an integrating sphere (Agilent, DRA-CA-301) and data analysed through the Tauc method, commonly used to determine the optical band gap in organic semiconductors. 62 The relationship between the optical band gap and absorption coefficient (α) follows the equation: (αhv) 2 = B(hv − E g ), where h is Planck's constant, ν is the frequency of the incident photons, B is a constant and E g is the band gap; 63 for organic semiconductors, E g can be approximated as a HOMO-LUMO gap. [64][65][66] As shown in Fig.…”