Sulfonate‐Containing Polyelectrolytes for Perovskite Modification: Chemical Configuration, Property, and Performance
Bo Wu,
Qingbo Wan,
Yue Wang
et al.
Abstract:Three sulfonate‐containing polyelectrolytes are elaborately designed and used to passivate perovskite film with the anti‐solvent method. Under the influence of the secondary monomer, three copolymers present various chemical configurations and deliver different modification effects. Fluorene‐thiophene copolymer STF has linear and highly‐conjugated chain. STF‐perovskite film presents large crystal grains. Fluorene‐carbazole copolymer SCF has flexible chain and easily enters into grain boundary areas. SCF‐perovs… Show more
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