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An ink ‘writes’ tiny generators that are powered by heat

Grid of six images showing a model, micrograph and close up details of a 3D printed lattice

A latticework box (model, top left; photograph, bottom left) built by layering 3D-printed ink filaments (middle and right columns). The ink’s properties make it suitable for turning a heat flow into an electric current. Credit: Fredrick Kim et al./Nat. Electron.

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Nature 596, 320 (2021)




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