High performing organic semiconducting polymers show great potentials for use in electronic devices which is greatly dependent on the material crystallinity and packing. A series of short oligomers of the diketopyrrolopyrrole (DPP)-based materials that have shown to have high charge mobility are studied to understand the local structuring at atomic level for these materials. The simulations show that the tendency for this material class to form aggregates is driven by the interaction between DPP fragments, but this is modulated by the other conjugated fragments of the materials which afect the rigidity of the polymer and the ability to form aggregates of larger size.<br>
Development of an efficient photocatalyst with both strong visible light absorption and high charge mobility is highly desirable but still remains a great challenge.
High charge mobility in two-dimensional percolative networks of PbSe quantum dots connected by atomic bonds
