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- W2897789144 endingPage "13262" @default.
- W2897789144 startingPage "13251" @default.
- W2897789144 abstract "The transport and photoelectric properties of four two-dimensional (2D) silicene/MX2 (M = Mo, W; X = S, Se) heterostructures have been investigated by employing density functional theory, nonequilibrium Green’s function, and Keldysh nonequilibrium Green’s function methods. The stabilities of silicene (SiE) are obviously improved after being placed on the MX2 (M = Mo, W; X = S, Se) substrates. In particular, the conductivities of SiE/MX2 are enhanced compared with free-standing SiE and MX2. Moreover, the conductivities are increased with the group number of X, i.e., in the order of SiE < SiE/MS2 < SiE/MSe2. An evident current oscillation phenomenon is observed in the SiE/WX2 heterostructures. When a linear light illumination is applied, SiE/MSe2 shows a stronger photoresponse than SiE/MS2. The maximum photoresponse with a value of 9.0a02/photon was obtained for SiE/WSe2. More importantly, SiE/MS2 (M = Mo, W) heterostructures are good candidates for application in designing solar cells owing to the well spatial separation of the charge carriers. This work provides some clues for further exploring 2D SiE/MX2 heterostructures involving tailored photoelectric properties." @default.
- W2897789144 created "2018-10-26" @default.
- W2897789144 creator A5025576125 @default.
- W2897789144 creator A5033848323 @default.
- W2897789144 creator A5050597585 @default.
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- W2897789144 creator A5055624841 @default.
- W2897789144 creator A5062404483 @default.
- W2897789144 creator A5074306080 @default.
- W2897789144 creator A5089053681 @default.
- W2897789144 date "2018-10-16" @default.
- W2897789144 modified "2023-10-10" @default.
- W2897789144 title "Transport and Photoelectric Properties of 2D Silicene/MX<sub>2</sub> (M = Mo, W; X = S, Se) Heterostructures" @default.
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