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Figure 4


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Macroscopic 1D vdW heterostructures and their potential applications. (A) Various types of starting SWCNTs that may serve as the skeleton for the fabrication of macroscopic 1D vdW heterostructures; (B) schematic showing the expected geometry of macrostructures; (C) optical images of a macroscopic SWCNT-BNNT film self-suspending on a silicon frame and a SWCNT-BNNT-MoS2 heterostructure film on a ceramic washer (scale bar 5 mm); (D) possible band alignments of a hetero-nanotube-based photovoltaic device.

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