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- W4224295570 abstract "The contact nature when monolayer blue phosphorus (blueP) interfaces with three transition metal electrodes (i.e., Pd, Ir, and Pt) was unraveled by the ab initio density functional theory calculations. Specifically, n-type Schottky contact is observed for Ir(1 1 1)-blueP, in contrast, p-type Schottky contacts are formed for Pd(1 1 1)- and Pt(1 1 1)-blueP. The Fermi level is pinned partially at metal-blueP interfaces due to two interfacial behaviors: one being the modification of metal work function caused by interface dipole formation ascribed to a redistribution of charges, and the other being the production of gap states that are dominated by P p-orbitals since the intralayer PP bonds are weakened by the interfacial metal-P interactions. The incorporation of metal substrates would also significantly alter the chemical properties of the adsorbed monolayer blueP. The binding strength of hydrogen can be enhanced by as much as 0.9 eV, which resulted from two parts: one is the charge transfer from metal substrate to monolayer blueP rendering a stronger HP coupling; the other is a strong interfacial interaction after the hydrogen adsorption. The free energy change of H adsorption onto Ir(1 1 1)-blueP is as low as 0.16 eV which is comparable to the most efficient catalyst of Pt. These findings would provide theoretical guidance for the future design of electronic devices based on blueP and exploration of its potential in novel catalysts for hydrogen evolution reaction." @default.
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- W4224295570 date "2022-08-01" @default.
- W4224295570 modified "2023-09-30" @default.
- W4224295570 title "Electric metal contacts to monolayer blue phosphorus: electronic and chemical properties" @default.
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- W4224295570 doi "https://doi.org/10.1016/j.apsusc.2022.153450" @default.
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