ArticleThe journal of physical chemistry letters2026
Near-Infrared Emitting Fibers: Stable Jet Electrospinning Flat PbSe Quantum Dots into Poly(methyl methacrylate).
Article in The journal of physical chemistry letters, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Flat colloidal PbSe QDs (fQDs) represent an innovative class of 2D near-infrared (NIR) photoluminescent QDs, which combine extreme thickness with additional lateral confinement. PbSe fQDs exhibit efficient NIR photoluminescence (860-1550 nm) that is adjustable to the low-loss transmission windows of (optical) fibers and makes them highly promising nanoemitters for fiber-based applications. Here, we demonstrate the incorporation of PbSe fQDs into easy-to-handle functional and stable jet electrospun poly(methyl methacrylate) (PMMA) fibers. Within these electrospun nanocomposites, we find perpendicularly alignedstacks of PbSe fQDs, which give rise to a narrowed and bathochromically shifted photoluminescence (e.g., at 1073 nm, with a quantum yield of 5%) that is caused by an energy transfer into the smallest band gap tail of the PbSe fQD thickness distribution. Embedding PbSe fQDs into solid-state nanocomposite fibers represents an important step forward for implementing near-infrared (NIR)-emitting 2D PbX nanocrystals in fiber optics.
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