Entropy and Disorder Enable Charge Separation in Organic Solar Cells
Entropy and Disorder Enable Charge Separation in Organic Solar Cells
Although organic heterojunctions can separate charges with near-unity efficiency and on a subpicosecond time scale, the full details of the charge-separation process remain unclear. In typical models, the Coulomb binding between the electron and the hole can exceed the thermal energy kBT by an order of magnitude, suggesting that it …