The effect of non-covalent conformational locks on intra-molecular charge transport of OPV units.

Although organic photovoltaic (OPV) molecules containing non-covalent conformational locks (NCLs) are demonstrated with superior device scale charge transport, the NCLs' working mechanism at the molecular level has not been directly addressed or revealed. Herein, three widely used OPV building blocks DT-BT, DT-FBT, and DT-OBT were prepared and comparatively researched for their intra-molecule charge transport (ICT) based on single molecular conductance measurements and theoretical calculation. The measured conductance (