Diketopyrrolopyrrole (DPP) and i-Indigo (i-Ind) are two monomers that are widely explored as active materials in organic field effect transistor and solar cells. These two molecules showed impressive charge carrier mobility due to better packing that are facilitated by quadrupoles. We hypothesized that the copolymers of these monomers would also exhibit high charge carrier mobility. However, we envisioned that the dihedral angle at the connecting point between the monomers will play a crucial role in packing as well as charge transport. To understand the impact of dihedral angle on charge transport, we synthesized three copolymers, wherein the DPP was sandwiched between benzenes, thiophenes and furans. The copolymer of i-Indigo and furan comprising DPP showed a band gap of 1.4 eV with a very high dihedral angle of 179°. The polymer was found to pack better and the coherence length was found to be 112 Å. The hole carrier mobility of these polymer was found to be highest among the synthesized polymer i.e. 0.01 cm²/Vs. The copolymer comprising benzene did not transport hole and electrons. The dihedral angle at the connecting point between i-Indigo and benzene DPP was 143 Å, which the packing and consequently charge transport properties.

二酮吡咯并吡咯（DPP）和i-靛蓝（i-Ind）是在有机场效应晶体管和太阳能电池中被广泛用作活性材料的两种单体。由于四极子促进了更好的堆积，这两个分子显示出令人印象深刻的电荷载流子迁移率。我们假设这些单体的共聚物也将表现出高的载流子迁移率。但是，我们预见到，单体之间连接点的二面角将在堆积和电荷传输中起关键作用。为了了解二面角对电荷传输的影响，我们合成了三种共聚物，其中DPP夹在苯，噻吩和呋喃之间。i的共聚物-包含DPP的靛蓝和呋喃的带隙为1.4 eV，非常高的二面角为179°。发现该聚合物堆积得更好，并且相干长度为112。发现这些聚合物的空穴载流子迁移率在合成聚合物中最高，即0.01cm ² / Vs。包含苯的共聚物不传输空穴和电子。在之间的连接点的二面角我-Indigo和苯DPP为143埃，其包装，并因此电荷传输性能。