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The effect of the substrate on the Raman and photoluminescence emission of single-layer MoS2
Open accessAbstract
We quantitatively study the Raman and photoluminescence (PL) emission from single-layer molybdenum disulfide (MoS 2 ) on dielectric (SiO 2 , hexagonal boron nitride, mica and the polymeric dielectric Gel-Film ® ) and conducting substrates (Au and few-layer graphene). We find that the substrate can affect the Raman and PL emission in a twofold manner. First, the absorption and emission intensities are strongly modulated by the constructive/destructive interference within the different substrates. Second, the position of the A 1g Raman mode peak and the spectral weight between neutral and charged excitons in the PL spectra are modified by the substrate. We attribute this effect to substrate-induced changes in the doping level and in the decay rates of the excitonic transitions. Our results provide a method to quantitatively study the Raman and PL emission from MoS 2 -based vertical heterostructures and represent the first step in ad hoc tuning the PL emission of 1L MoS 2 by selecting the proper substrate.
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Cites
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
Shi, J., Ma, D., Han, G.-F., Zhang, Y., Ji, Q., Gao, T., Sun, J., Song, X., Li, C., Zhang, Y., et al. (2014) · ACS Nano · doi:10.1021/nn503211t · Cited by 459
Samadi, M., Sarikhani, N., Zirak, M., Zhang, H., Zhang, H.-L., & Moshfegh, A. Z. (2018) · Nanoscale Horizons · doi:10.1039/c7nh00137a · Cited by 408
All Chemical Vapor Deposition Growth of MoS2:h-BN Vertical van der Waals Heterostructures
Wang, S., Wang, X., & Warner, J. H. (2015) · ACS Nano · doi:10.1021/acsnano.5b00655 · Cited by 389
Self-Limiting Layer-by-Layer Oxidation of Atomically Thin WSe2
Yamamoto, M., Dutta, S., Aikawa, S., Nakaharai, S., Wakabayashi, K., Fuhrer, M. S., Ueno, K., & Tsukagoshi, K. (2015) · Nano Letters · doi:10.1021/nl5049753 · Cited by 258
Metadata
- Authors
- Buscema, M., Steele, G. A., van der Zant, H. S. J., & Castellanos-Gomez, A.
- Venue
- Nano Research
- Publisher
- Tsinghua University Press
- Published
- 2014-04
- Volume
- 7
- Issue
- 4
- Pages
- 561-571
- ISSN
- 1998-0000 (ISSN-L)
- 1998-0124
- OpenAlex
- W2033580560
- Cited by
- 622
- References
- 1
- FWCI
- 25.61
- Type
- journal article
- Language
- en
- Open access
- green
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- Buscema, M., Steele, G. A., van der Zant, H. S. J., & Castellanos-Gomez, A. (2014). The effect of the substrate on the Raman and photoluminescence emission of single-layer MoS2. Nano Research. https://doi.org/10.1007/s12274-014-0424-0
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