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Synthesis of Atomically Thin WO3 Sheets from Hydrated Tungsten Trioxide

Kalantar-zadeh, Kourosh, Vijayaraghavan, Aravind, Ham, Moon-Ho, Zheng, Haidong, Breedon, Michael, Strano, Michael S.·2010·Chemistry of Materials

Abstract

Atomically thin WO 3 is fabricated using a three-step process, involving wet-chemical synthesis of hydrated-WO 3, mechanical exfoliation of fundamental layers and dehydration by annealing at 300 °C. Atomic force microscopy reveals that the minimum resolvable thickness of the hydrated flakes to be ∼1.4 nm, which corresponds to the unit-cell height. The subsequent annealing temperature determines the degree of dehydration and thereby the crystallographic structure of the resultant WO 3 . The hydrated and dehydrated flakes are characterized by Raman spectroscopy to reveal spectroscopic fingerprints of flake thickness. Thin flakes are also shown to have higher propensity for lithium intercalation, which is also evidenced in Raman planar peak intensity.

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Metadata

Authors
Kalantar-zadeh, K., Vijayaraghavan, A., Ham, M.-H., Zheng, H., Breedon, M., & Strano, M. S.
Venue
Chemistry of Materials
Published
2010-09-07
Volume
22
Issue
19
Pages
5660-5666
ISSN
  • 0897-4756 (ISSN-L)
  • 1520-5002
OpenAlex
W2044278655
Cited by
242
References
0
FWCI
11.78
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Synthesis of Atomically Thin WO3 Sheets from Hydrated Tungsten Trioxide. https://app.cochat.ai/papers/10.1021/cm1019603
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Kalantar-zadeh, K., Vijayaraghavan, A., Ham, M.-H., Zheng, H., Breedon, M., & Strano, M. S. (2010). Synthesis of Atomically Thin WO3 Sheets from Hydrated Tungsten Trioxide. Chemistry of Materials. https://doi.org/10.1021/cm1019603

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Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.