Projects per year
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.
Original language | English |
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Pages (from-to) | 4537-4542 |
Number of pages | 6 |
Journal | Nanoscale |
Volume | 13 |
Issue number | 8 |
DOIs | |
Publication status | Published - 28 Feb 2021 |
MoE publication type | A1 Journal article-refereed |
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Ultrafast Data Production with Broadband Photodetectors for Active Hyperspectral Space Imaging
Sun, Z., Cui, L. & Pajunpää, T.
01/01/2021 → 31/12/2023
Project: Academy of Finland: Other research funding
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NOIMO: Novel optical isolators to continue Moore's law in photonics integration
01/09/2020 → 31/08/2024
Project: Academy of Finland: Other research funding
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ATOP: Atomically-engineered nonlinear photonics with two-dimensional layered material superlattices
Sun, Z., Das, S., Dai, Y., Akkanen, S., Yoon, H. H., Pelgrin, V., Wang, Y., Huang, Y., Liapis, A., Wang, Y., Mohsen, A., Nigmatulin, F., Uddin, M., Du, M. & Zhang, Y.
01/09/2019 → 31/08/2025
Project: EU: ERC grants