Fig. 6
From: DFT study of benzothiadiazole based small molecules for high efficiency organic photovoltaics

HOMO–LUMO electron density mapping of REF and designed structure G1–G8.
From: DFT study of benzothiadiazole based small molecules for high efficiency organic photovoltaics

HOMO–LUMO electron density mapping of REF and designed structure G1–G8.