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Record‐breaking organic solar cells (OSCs) based on blends of polymer donors and small molecule acceptors often show undesirable degradation, which severely precludes their practical use. Herein, we demonstrate a facile and cost‐effective approach to construct thermally stable OSCs at 150 oC by incorporating a small amount of a polymer insulator polyacenaphthylene (PAC) with high glass‐transition...
The first transition metal‐free highly stereoselective positional isomerization of various α‐alkyl styrenes through a carbocation mechanism triggered strategy is developed by using Al(OTf)3 as a hidden Brønsted acid catalyst, which provides facile access to value‐added acyclic tri‐ and tetra‐substituted alkenes in good yields with high stereoselectivity under mild conditions. The practicality of this...