Binary Organic Solar Cells Breaking 19% via Manipulating the Vertical Component Distribution

Binary Organic Solar Cells Breaking 19% via Manipulating the Vertical Component Distribution The variation of the vertical component distribution can significantly influence the photovoltaic performance of organic solar cells (OSCs), mainly due to its impact on exciton dissociation and charge-carrier transport and recombination. Herein, binary devices are fabricated via sequential deposition (SD) of D18 and L8-BO materials in a two-step process. Upon independently regulating the spin-coating sp...