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Single-step chemical vapour deposition of anti-pyramid MoS2/WS2vertical heterostructures
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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6
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Nanoscale, Volume 13, issue 8, pp. 4537-4542
Abstract
Van der Waals heterostructures are the fundamental building blocks of electronic and optoelectronic devices. Here we report that, through a single-step chemical vapour deposition (CVD) process, high-quality vertical bilayer MoS2/WS2 heterostructures with a grain size up to ∼60 μm can be synthesized from molten salt precursors, Na2MoO4 and Na2WO4. Instead of normal pyramid vertical heterostructures grown by CVD, this method synthesizes an anti-pyramid MoS2/WS2 structure, which is characterized by Raman, photoluminescence and second harmonic generation microscopy. Our facile CVD strategy for synthesizing anti-pyramid structures unveils a new synthesis route for the products of two-dimensional heterostructures and their devices for application.
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| openaire: EC/H2020/820423/EU//S2QUIP | openaire: EC/H2020/834742/EU//ATOP
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Bai, X, Li, S, Das, S, Du, L, Dai, Y, Yao, L, Raju, R, Du, M, Lipsanen, H & Sun, Z 2021, 'Single-step chemical vapour deposition of anti-pyramid MoS 2 /WS 2 vertical heterostructures', Nanoscale, vol. 13, no. 8, pp. 4537-4542. https://doi.org/10.1039/d0nr08281c