Pop-Up Conducting Large-Area Biographene Kirigami

ACS Nano
Ruilong MaVladimir V Tsukruk

Abstract

We demonstrate the rapid, large-area transformation of bioenabled graphene laminates into multidimensional geometries for pop-up and stretchable applications. Water-vapor annealing facilitates the controlled plasticization of the multilayered silk-graphene morphologies, allowing highly localized kirigami cuts by programmable drag knife with diverse type and depth of cuts. By adjusting drag-knife depth, we can generate a microscale array of full and partial cuts, enabling a purely topological approach toward the control of metastable fold-unfold states and crack fracture paths in kirigami structures. Through orthogonal control over the graphene-silk composite's nanoscale morphology, cut pattern, and semimetal-like conductivity, we showcase bioenabled laminates as a platform for prospective soft and shape-transforming electronics as flexible interconnects and stretchable energy harvesters.

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Citations

Oct 30, 2019·Journal of Materials Chemistry. B, Materials for Biology and Medicine·Kun LiYubo Fan
Jun 3, 2020·Nature Biomedical Engineering·Sahab BabaeeGiovanni Traverso
Dec 29, 2021·Chemical Reviews·Kyoung Won ChoDae-Hyeong Kim

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