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Cited by 300

The DOI matches its Crossref record; 42 of the 42 references it cites were found in a registry or an index.

Modulation of the Electronic Properties of Ultrathin Black Phosphorus by Strain and Electrical Field

Li, Yan, Yang, Shengxue, Li, Jingbo·2014·The Journal of Physical Chemistry C

Abstract

The structural and electronic properties of the bulk and ultrathin black phosphorus and the effects of in-plane strain and out-of-plane electrical field on the electronic structure of phosphorene are investigated using first-principles methods. The computed results show that the bulk and few-layer black phosphorus from monolayer to six-layer demonstrates inherent direct bandgap features ranging from 0.5 to 1.6 eV. Interestingly, the band structures of the bulk and few-layer black phosphorus from X point via A point to Y point present degenerate distribution, which shows totally different partial charge dispersions. Moreover, strong anisotropy in regard to carrier effective mass has been observed along different directions. The response of phosphorene to in-plane strain is diverse. The bandgap monotonically decreases with increasing compressive strain, and semiconductor-to-metal transition occurs for phosphorene when the biaxial compressive reaches −9%. Tensile strain first enlarges the gap until the strain reaches around 4%, after which the bandgap exhibits a descending relationship with tensile strain. The bandgaps of the pristine and deformed phosphorene can also be continuously modulated by the electrical field and finally close up at about 15 V/nm. Besides, the electron and hole effective mass along different directions exhibits different responses to the combined impact of strain and electrical field.

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Metadata

Authors
Li, Y., Yang, S., & Li, J.
Venue
The Journal of Physical Chemistry C
Published
2014-10-03
Volume
118
Issue
41
Pages
23970-23976
ISSN
  • 1932-7447 (ISSN-L)
  • 1932-7455
OpenAlex
W2321536511
Cited by
300
References
42
FWCI
15.34
Type
journal article
Language
en
Open access
closed

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