title: How high local charge carrier mobility and an energy cascade in a three-phase bulk heterojunction enable >90% quantum efficiency.
abstract: Charge generation in champion organic solar cells is highly efficient in spite of low bulk charge-carrier mobilities and short geminate-pair lifetimes. In this work, kinetic Monte Carlo simulations are used to understand efficient charge generation in terms of experimentally measured high local charge-carrier mobilities and energy cascades due to molecular mixing.
authors.affiliation: Stanford University, 476 Lomita Mall, Stanford, CA, 94305, USA.
authors.forename: Timothy M
authors.initials: TM
authors.lastname: Burke
authors.forename: Michael D
authors.initials: MD
authors.lastname: McGehee
keywords: Monte Carlo simulation; bulk heterojunction; geminate pair separation; polymer solar cell