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Lattice strain effects on the optical properties of MoS2 nanosheets

Open access
Yang, Lei, Cui, Xudong, Zhang, Jingyu, Wang, Kan, Shen, Meng, Zeng, Shuangshuang, Dayeh, Shadi A., Feng, Liang, Xiang, Bin·2014·Scientific Reports

Abstract

"Strain engineering" in functional materials has been widely explored to tailor the physical properties of electronic materials and improve their electrical and/or optical properties. Here, we exploit both in plane and out of plane uniaxial tensile strains in MoS2 to modulate its band gap and engineer its optical properties. We utilize X-ray diffraction and cross-sectional transmission electron microscopy to quantify the strains in the as-synthesized MoS2 nanosheets and apply measured shifts of Raman-active modes to confirm lattice strain modification of both the out-of-plane and in-plane phonon vibrations of the MoS2 nanosheets. The induced band gap evolution due to in-plane and out-of-plane tensile stresses is validated by photoluminescence (PL) measurements, promising a potential route for unprecedented manipulation of the physical, electrical and optical properties of MoS2.

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Metadata

Authors
Yang, L., Cui, X., Zhang, J., Wang, K., Shen, M., Zeng, S., Dayeh, S. A., Feng, L., & Xiang, B.
Venue
Scientific Reports
Published
2014-07-10
Volume
4
Issue
1
Pages
5649-5649
ISSN
2045-2322 (ISSN-L)
OpenAlex
W2088776954
Cited by
421
References
3
FWCI
11.47
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Lattice strain effects on the optical properties of MoS2 nanosheets. https://app.cochat.ai/papers/10.1038/srep05649
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Yang, L., Cui, X., Zhang, J., Wang, K., Shen, M., Zeng, S., Dayeh, S. A., Feng, L., & Xiang, B. (2014). Lattice strain effects on the optical properties of MoS2 nanosheets. Scientific Reports. https://doi.org/10.1038/srep05649

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