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- W4319596802 abstract "In this Letter, we design Janus γ-[Formula: see text] ([Formula: see text] S, Se, Te) monolayers and predict their piezoelectricity and carrier mobility by using first-principles simulations. Janus γ-[Formula: see text] are found to be indirect semiconducting characteristics with a camel's back-like dispersion in the top valence band. We discovered that Janus γ-[Formula: see text] are piezoelectric with high out-of-plane piezoelectric coefficients. Our calculated results for the piezoelectricity demonstrate that the out-of-plane piezoelectric coefficient d 31 of Janus γ-Sn 2 STe is calculated to be 1.02 pm/V, larger than that of other 2D structures. Moreover, our calculations for the transport features reveal that while the carrier mobility of γ-Sn 2 SSe is directionally isotropic, the electron mobility of both γ-Sn 2 STe and γ-Sn 2 SeTe exhibit high anisotropy along the two transport directions. The Janus γ-[Formula: see text] monolayers have high electron mobility, especially the electron mobility of γ-Sn 2 STe exceeds 10 5 cm 2 V –1 s –1 , which is potential for nanoelectronic applications." @default.
- W4319596802 created "2023-02-09" @default.
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- W4319596802 date "2023-02-06" @default.
- W4319596802 modified "2023-10-17" @default.
- W4319596802 title "Enhanced out-of-plane piezoelectricity and carrier mobility in Janus <b><i>γ</i></b>- Sn2XY ( X <b>/<i>Y</i>=</b> S, Se, Te) monolayers: A first-principles prediction" @default.
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- W4319596802 doi "https://doi.org/10.1063/5.0135210" @default.
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