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Cited by 432

The DOI matches its Crossref record; 54 of the 54 references it cites were found in a registry or an index.

Structural and electronic properties of monolayer group III monochalcogenides

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Demirci, S., Avazlı, N., Durgun, E., Cahangirov, S.·2017·Physical Review B

Abstract

We investigate the structural, mechanical, and electronic properties of the two-dimensional hexagonal structure of group III-VI binary monolayers, $MX$ ($M=\text{B}$, Al, Ga, In and $X=\text{O}$, S, Se, Te) using first-principles calculations based on the density functional theory. The structural optimization calculations and phonon spectrum analysis indicate that all of the 16 possible binary compounds are thermally stable. In-plane stiffness values cover a range depending on the element types and can be as high as that of graphene, while the calculated bending rigidity is found to be an order of magnitude higher than that of graphene. The obtained electronic band structures show that $MX$ monolayers are indirect band-gap semiconductors. The calculated band gaps span a wide optical spectrum from deep ultraviolet to near infrared. The electronic structure of oxides ($M\mathrm{O}$) is different from the rest because of the high electronegativity of oxygen atoms. The dispersions of the electronic band edges and the nature of bonding between atoms can also be correlated with electronegativities of constituent elements. The unique characteristics of group III-VI binary monolayers can be suitable for high-performance device applications in nanoelectronics and optics.

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Crossref · 10.1103/physrevb.95.115409

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Metadata

Authors
Demirci, S., Avazlı, N., Durgun, E., & Cahangirov, S.
Venue
Physical Review B
Published
2017-03-06
Volume
95
Issue
11
ISSN
  • 2469-9950 (ISSN-L)
  • 2469-9969
OpenAlex
W2592352066
Cited by
432
References
54
FWCI
15.47
Type
journal article
Language
en
Open access
green

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