) have the potential to be potent polymeric non-fullerene electron acceptors for organic electronics devices such as organic solar cells or photodetectors for examples. The combination of BACDs with strong electron donors such as IDTTB6 does not seem to lead to a strong intermolecular charge-transfer significantly improving the visible-light absorption coverage of the final material. The most compelling results were obtained when combining the BACD core with electron-deficient fragments such as DPP and TII, leading to a wide absorption clearly different from the simple addition of the absorption spectrum of both subcomponents. Combining the BACD scaffold with electron acceptors along the polymer chains thus seems to be a promising strategy for the synthesis of future materials. To understand better their electronic structure and establish structure/properties relationships for this new family of materials, TD-DFT calculations were performed on dimeric fragments of polymers (P(BACD-T),