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- W2874119892 abstract "The electronic and optical properties of alkali-metal-adsorbed graphene-like gallium nitride (g-GaN) have been investigated using density functional theory. The results denote that alkali-metal-adsorbed g-GaN systems are stable compounds, with the most stable adsorption site being the center of the hexagonal ring. In addition, because of charge transfer from the alkali-metal atom to the host, the g-GaN layer shows clear n-type doping behavior. The adsorption of alkali metal atoms on g-GaN occurs via chemisorption. More importantly, the work function of g-GaN is substantially reduced following the adsorption of alkali-metal atoms. Specifically, the Cs-adsorbed g-GaN system shows an ultralow work function of 0.84 eV, which has great potential application in field-emission devices. In addition, the alkali-metal adsorption can lead to an increase in the static dielectric constant and extend the absorption spectrum of g-GaN." @default.
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- W2874119892 date "2018-07-11" @default.
- W2874119892 modified "2023-09-30" @default.
- W2874119892 title "Alkali-metal-adsorbed g-GaN monolayer: ultralow work functions and optical properties" @default.
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- W2874119892 doi "https://doi.org/10.1186/s11671-018-2625-z" @default.
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