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Schematic of various sheets: (a)GE, (b) GA, (c) GO, and (d) RGO.
Schematic of an HGS. The GA/GO/RGO strip (red color) is embedded in between GE strips (grey color).
Periodic ripples form in GA-, GO-, and RGO-HGSs with different width fractions f upon relaxation. Particularly, kinking and buckling are found in GO-HGSs.
Dependence of of GA-HGSs, GO-HGSs and RGO-HGSs on .
(a) Total phonon spectra of pure GE, GO, RGO, and GA sheets, and (b) their in-plane (dash line) and out-of-plane (solid line) spectrum components, with S in-out denoting the overlap.
The phonon spectra of the carbon atoms with sp 2 (black solid line) and sp 3 bonds (red dot line) in GO and RGO sheets, with S CC-CH denoting the overlap.
Thermal conductivities (W/mK) of pure GE, GA, GO, and RGO sheets.
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