Compared to molecular weight, however, the effect of PDI on the charge-carrier mobility is not as well-understood by the community. While this behavior may at first glance be due to a correlation between molecular weight and PDI, a Pearson Correlation analysis shows that these two variables are positively correlated only for P3HT (r = 0.69) but remain uncorrelated for DPP-DTT (0.07) and N2200 (-0.04) (Table ). PDI may be less frequently studied as a tunable experimental parameter since batch characteristics are sensitive to the synthetic procedure, hindering the design of controlled experiments for OFET performance comparisons. Recently, McBride et al. blended different Mw batches of P3HT and found that a wider molecular weight distribution exhibited beneficial effects due to a synergistic behavior between shorter tie chains connecting aggregated domains of larger chains in aged solutions. However, the data analysis above shows that a relationship between dispersity and mobility may be a common trend for copolymer systems, which potentially motivates a broader study into the structural mechanisms behind the mobility dependence on molecular weight distributions.