Vapor‑assisted pre-solvation breaks the stability limit of conventional amine-based PbS quantum dot inks (IMAGE)

Tsinghua University Press

Vapor‑assisted pre-solvation breaks the stability limit of conventional amine-based PbS quantum dot inks

Caption

A vapor-assisted pre-solvation strategy enables the dispersion of PbS-PbI2 quantum dots (QDs) in amine-free solvents. The method involves a brief butylamine (BA) vapor treatment followed by evaporation, which pre-solvates the PbI2 ligand. The resulting inks exhibit colloidal stability exceeding 60 days.

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Nano Research, Tsinghua University Press

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