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. 2025 Aug 7;25(33):12712–12718. doi: 10.1021/acs.nanolett.5c03156

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© 2025 The Authors. Published by American Chemical Society

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Reconfigurable ultrafast thermal metamaterial pixel unit. (a) SEM image with false colors of a thermal metamaterial pixel unit (scale bar: 20 μm). The source/drain lines are colored yellow, and the graphene area are colored blue. The cyan and green colors represent gate electrodes for the MM Gr-FET and PU Gr-FETs. (b) Zoomed-in view showing the metamaterial on top of the MM Gr-FET (scale bar: 10 μm). (c) Emissivity simulation of Au metasurfaces with side length of 500 nm. (d) The experimental measurement of a fabricated metasurface with side length of 500 nm shows good agreement with the simulation.