The DOI matches its Crossref record; 2 of the 2 references it cites were found in a registry or an index.
Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2
Open accessAbstract
Thickness is one of the fundamental parameters that define the electronic, optical, and thermal properties of two-dimensional (2D) crystals. Phonons in molybdenum disulfide (MoS2) were recently found to exhibit unique thickness dependence due to the interplay between short and long range interactions. Here we report Raman spectra of atomically thin sheets of WS2 and WSe2, isoelectronic compounds of MoS2, in the mono- to few-layer thickness regime. We show that, similar to the case of MoS2, the characteristic A1g and E2g(1) modes exhibit stiffening and softening with increasing number of layers, respectively, with a small shift of less than 3 cm(-1) due to large mass of the atoms. Thickness dependence is also observed in a series of multiphonon bands arising from overtone, combination, and zone edge phonons, whose intensity exhibit significant enhancement in excitonic resonance conditions. Some of these multiphonon peaks are found to be absent only in monolayers. These features provide a unique fingerprint and rapid identification for monolayer flakes.
Overview
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
The claims and statistics of this paper haven’t been checked yet.
Run the check — free, no account needed. It reads the open-access text and checks the sources it cites.
Self-check
Percentages, sums and reported differences re-computed from the paper’s own numbers.
The self-check needs the paper’s full text.
Citations
Cites
Electronics and optoelectronics of two-dimensional transition metal dichalcogenides
Wang, Q. H., Kalantar-Zadeh, K., Kis, A., Coleman, J. N., & Strano, M. S. (2012) · Nature Nanotechnology · doi:10.1038/nnano.2012.193 · Cited by 16,374
Two-dimensional atomic crystals
Novoselov, K. S., Jiang, D., Schedin, F., Booth, T. J., Khotkevich, V. V., Morozov, S. V., & Geim, A. K. (2005) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.0502848102 · Cited by 11,788
Cited by
Defect-Induced Photoluminescence in Monolayer Semiconducting Transition Metal Dichalcogenides
Chow, P. K., Jacobs-Gedrim, R. B., Gao, J., Lu, T.-M., Yu, B., Terrones, H., & Koratkar, N. (2015) · ACS Nano · doi:10.1021/nn5073495 · Cited by 482
Schmidt, H., Giustiniano, F., & Eda, G. (2015) · Chemical Society Reviews · doi:10.1039/c5cs00275c · Cited by 466
Self-citationSamadi, M., Sarikhani, N., Zirak, M., Zhang, H., Zhang, H.-L., & Moshfegh, A. Z. (2018) · Nanoscale Horizons · doi:10.1039/c7nh00137a · Cited by 408
Xia, C., Xiong, W., Du, J., Wang, T., Peng, Y., & Li, J. (2018) · Physical Review B · doi:10.1103/physrevb.98.165424 · Cited by 365
Excitonic resonances in thin films of WSe2: from monolayer to bulk material
Arora, A., Koperski, M., Nogajewski, K., Marcus, J., Faugeras, C., & Potemski, M. (2015) · Nanoscale · doi:10.1039/c5nr01536g · Cited by 359
Metadata
- Authors
- Zhao, W., Ghorannevis, Z., Amara, K. K., Pang, J. R., Toh, M., Zhang, X., Kloc, C., Tan, P. H., & Eda, G.
- Venue
- Nanoscale
- Publisher
- Royal Society of Chemistry (RSC)
- Published
- 2013
- Volume
- 5
- Issue
- 20
- Pages
- 9677
- ISSN
- 2040-3364 (ISSN-L)
- 2040-3372
- OpenAlex
- W2141415026
- Cited by
- 912
- References
- 2
- FWCI
- 24.13
- Type
- journal article
- Language
- en
- Open access
- green
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review
How to cite
Cite CoChat for the checks on this page, and the paper for its own findings.
- This page
- CoChat. (2026). Citation check: Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2. https://app.cochat.ai/papers/10.1039/c3nr03052k
- The paper
- Zhao, W., Ghorannevis, Z., Amara, K. K., Pang, J. R., Toh, M., Zhang, X., Kloc, C., Tan, P. H., & Eda, G. (2013). Lattice dynamics in mono- and few-layer sheets of WS2 and WSe2. Nanoscale. https://doi.org/10.1039/c3nr03052k
Data sources
Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
