This paper reports side-chain-engineered polymer donors and a small-molecule acceptor that are capable of simultaneous charge and energy transfer as the active layer for organic photovoltaics.

Fullerene-passivated SnO2 electron transport layers (ETLs) offer the route for continued boost in power conversion efficiencies (PCEs) of perovskite solar cells (PSCs). However, the detailed understanding on the photocarrier dynamics...

We employed ternary blends capable of energy transfer—a synthesized small molecule (SM-4OMe) comprising benzodithiophene (BDT) units (a molecule designed for energy transfer), and a polymer (PTB7-TH) with BDT units with desired packing orientation, and a fullerene—as active layers for single junction photovoltaic devices.

No abstract

In photovoltaic devices, more effective transfer of dissociated electrons and holes from the active layer to the respective electrodes will result in higher fill factors and short-circuit current densities and, thus, enhanced power conversion efficiencies (PCEs).