Polyfluoride Acceptor with Limited Molecular Diffusion Enables Efficient and Stable Ternary Organic Solar Cells
Siyuan Li,
Zhilong He,
Shimin Zhang
et al.
Abstract:Due to the slow diffusion of photovoltaic molecules, in particular, small-molecule acceptors (SMAs), under light and heating, the morphology of the active layer in organic solar cells (OSCs) prefers to deviate from the favorably metastable status, leading to the challenge of stability during long-term operation. Employing materials with a high glass transition temperature (T g ) as the third component to suppress molecular diffusion is an efficient method to achieve the balance of efficiency and stability of O… Show more
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