Sep 1, 2021 · Since a couple of years ago, Y6 has emerged as one of the main non-fullerene acceptors for organic solar cells, as its use leads to superior power conversion efficiencies. It is thus of major interest to investigate the multiscale phenomena that …

May 10, 2021 · Here we show the design and synthesis of a highly efficient non-fullerene acceptor family by substituting the beta position of the thiophene unit on a Y6-based dithienothiophen...

Aug 7, 2020 · In early 2019, we reported a non-fullerene acceptor (named Y6) that can simultaneously achieve high external quantum efficiency and low voltage loss for OSC. Here, we use a combination of...

Oct 1, 2024 · The influence of molecular interactions and thermal-driven assembly on morphology based on AGO (G-Dimer-D/G-Dimer-A) and ASM blend (MPhS-C6/Y6) was investigated by in-situ...

We discuss how the molecular building blocks of PM6 foster polymer chain aggregation and why the unique A-DA'D-A structure of Y6 leads to extended near-infrared absorption as well as strong intermolecular interactions. We then introduce the excited states and processes involved in the photovoltaic action of the PM6:Y6 blend.

the Y6 crystal structure reported recently. Most Y6 dimer configurations exhibit strong binding interactions, large electronic couplings, and high transport rates, which when taken together rationalize the better performance of OSCs based on Y6. Keywords: Organic solar cells, non-fullerene acceptors, molecular packing, density functional

Jul 14, 2021 · This perspective will focus on the discovery of Y6 and its derivatives as well as the intrinsic physical mechanism of Y-series-based devices, which provides a guideline for future molecular design.

Our work reveals the critical role of CN in the crystalline packing of Y6 in the device active layer and provides direct correlations between this crystalline packing and the device characteristics and photophysical properties.

In the present work, we have designed four new acceptors—Y6-NO 2, Y6-IN, Y6-ERHD, and Y6-CAO—with different terminal groups, which possess diverse electron-withdrawing ability.

Dec 1, 2024 · Y6 forms a face-to-face, dense packing pair with the lateral shift around half of a molecule. Y7 is a dense packing was well, but the stacking is the T type. Y5 forms an exact face-to-face style while its packing is not the dense one.