Achieving over 17% efficiency of ternary all-polymer solar cells with two well-compatible polymer acceptors

Polymerizing small molecular acceptors for efficient all‐polymer solar cells

“…Because of the remarkable red-shifted absorption, superior backbone ordering, and optimal blend morphology with the donor component (PBDB-T), PZT-γ-based all-PSCs afforded a record-high power conversion efficiency of 15.8%, a greatly enhanced J sc of 24.7 mA cm À2 T A B L E 1 The reported photovoltaic properties for the regiorandom and regioregular PSMAs based all-PSCs All-polymer systems Their study also highlighted that precise control of the molecular configuration enhanced the charge carrier mobility and decreased the π-π stacking distance, which afforded higher performance in all-PSCs. 28,32,33 Additionally, Liu et al 32 obtained an optimal morphology, reduced nonradiative energy loss, and an impressive PCE of 16.09% in ternary all-PSCs, where the B!N-based polymer acceptor was incorporated into the PM6:PY-IT (regioregular PSMA) host blend. Very recently, Min et al 33 reported a record-high efficiency of 17.2% and superior stability of ternary all-PSCs, which contained the regioregular PSMA PY2F-T.…”

Efficient charge generation and low open circuit voltage loss enable a PCE of 10.3% in small molecule donor and polymer acceptor organic solar cells

“…Due to the reported excellent thermal stability in the MA/PD-type OSCs, 15,16 we also tested the thermal stability of the Se-2 /PJ1 and Se-1 /PJ1 devices. After annealing for a half hour at 150 °C, the PCE of Se-2 /PJ1 sustained 70%, while the PCE of Se-1 /PJ1 decreased to 30% (Fig.…”

“…2,3,12–14 Consequently, the power conversion efficiency (PCE) has surpassed 16% for the binary all-polymer OSCs and reached 17% for ternary all-polymer OSCs. 11,15 Adopting all the merits of polymer acceptors, however, the OSCs using the combination of polymer acceptors and small molecule donors (SM D /P A -type) have attracted less attention than other systems. 16,17 In 2019, Wang et al exhibited excellent thermal stability of SM D /P A -type OSCs.…”

Review on Y6-Based Semiconductor Materials and Their Future Development via Machine Learning

“…Based on PYF-T, Yu and coworkers [90] in 2021 reported a PY2F-T with two fluorine atoms on its one end group, and an all-polymer solar cell with an efficiency of 15.22% [90] was obtained. After introducing the fluorine-free PYT as the third component into the main system of PM6: PY2F-T by Sun and coworkers [91], the improved PCE of PM6:PY2F-T is as high as 17.2% [91] due to a balance between material crystallization and phase separation.…”