Fused-ring electron acceptors (FREAs) have a donor–acceptor–donor structure comprising
an electron-donating fused-ring core, electron-accepting end groups, π-bridges and side …

Organic solar cells are composed of electron donating and accepting organic
semiconductors. Whilst a significant palette of donors has been developed over three …

Molecular design of non-fullerene acceptors is of vital importance for high-efficiency organic
solar cells. The branched alkyl chain modification is often regarded as a counter-intuitive …

Conspectus Emerging solar cells that convert clean and renewable solar energy to
electricity, such as organic solar cells (OSCs) and perovskite solar cells (PSCs), have …

All‐polymer solar cells (all‐PSCs) have drawn tremendous research interest in recent years,
due to their inherent advantages of good film formation, stable morphology, and mechanical …

Typical organic photovoltaic materials show high Urbach energies (ca. 25–50 meV), which
is considerably higher than those of their inorganic counterparts and limits further …

Thanks to their broad absorption spectra, easily modifiable molecular energy levels and
chemical structures, nonfullerene small-molecule acceptors (SMAs) have attracted …

With the recent emergence of a new class of high-performance nonfullerene acceptors
(NFAs), organic solar cells (OSCs) have entered a new phase of research featuring high …

The short exciton diffusion length associated with most classical organic semiconductors
used in organic photovoltaics (5-20 nm) imposes severe limits on the maximum size of the …

Side‐chain modifications of non‐fullerene acceptors (NFAs) are essential for harvesting
their full potential in organic solar cells (OSC). Here, an effective alkyl‐chain‐branching …