ArticleNature nanotechnology2026
High-resolution intrinsically stretchable quantum-dot displays through thermally assisted intaglio transfer printing.
Article in Nature nanotechnology, 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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25 authors.
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Abstract
Intrinsically stretchable light-emitting devices are promising for wearable displays, soft robotics and skin-mounted optoelectronics but are limited by the trade-off between mechanical softness, charge injection and pixel definition. Stretchable quantum-dot emissive layers offer narrow, colour-tunable emission from quantum-confined nanocrystals, yet elastomeric matrices introduce insulating barriers and viscoelastic deformation that compromise efficiency and high-resolution patterning. Here we report ligand engineering at the interface and thermally assisted intaglio film transfer printing (LIFT), a strategy for high-definition intrinsically stretchable quantum-dot light-emitting diodes. Selective replacement of the polymer-rich surface of quantum-dot nanocomposites with polar short-chain ligands forms a nanoscale interfacial region that lowers the hole-injection barrier while preserving bulk mechanical compliance. Thermal assistance concentrates strain at pattern boundaries, allowing clean cleavage of soft emissive films into high-fidelity pixel arrays. The devices achieve external quantum efficiencies of up to 23.9% in conventional architectures and fully stretchable QLEDs with a luminance of 53,300 cd m⁻
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Registered trials
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