Charge carrier transport in poly( p -phenylene vinylene):methanofullerene photovoltaic blends

The charge carrier transport and energetic disorder in OC 1 C 10 -PPV:PCBM blends with different fullerene concentrations are investigated. We demonstrate that the temperature-dependent current density versus voltage ( J – V ) characteristics of PCBM electron-only device and OC 1 C 10 -PPV hole-only device can be accurately described using our recently introduced improved mobility model. Furthermore, the J-V characteristics of OC 1 C 10 -PPV:PCBM blends that were measured in electron-only and hole-only devices for different wt