2015
DOI: 10.1021/acs.nanolett.5b03275
|View full text |Cite
|
Sign up to set email alerts
|

Two-Dimensional Rectangular and Honeycomb Lattices of NbN: Emergence of Piezoelectric and Photocatalytic Properties at Nanoscale

Abstract: Using first-principles calculations, we predict that monolayered honeycomb and rectangular two-dimensional (2D) lattice forms of NbN are metastable and naturally derivable from different orientations of its rocksalt structure. While the rectangular form is shown to retain the metallic and superconducting (SC) properties of the bulk, spectacularly contrasting properties emerge in the honeycomb form of NbN: it exhibits (a) semiconducting electronic structure suitable for valleytronics and photocatalysis of water… Show more

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...
1

Citation Types

5
41
0

Year Published

2019
2019
2024
2024

Publication Types

Select...
5
1

Relationship

1
5

Authors

Journals

citations
Cited by 57 publications
(46 citation statements)
references
References 51 publications
5
41
0
Order By: Relevance
“…if the electron-phonon coupling µ is large and A is small. h-NbN, being a good superconductor, its electron-phonon coupling is known to be large [18]. Secondly, A is small when a material is close to a semiconductor to metal phase transition (vanishing bandgap), which is known here to occur in h-NbN at strain =6%.…”
mentioning
confidence: 88%
See 3 more Smart Citations
“…if the electron-phonon coupling µ is large and A is small. h-NbN, being a good superconductor, its electron-phonon coupling is known to be large [18]. Secondly, A is small when a material is close to a semiconductor to metal phase transition (vanishing bandgap), which is known here to occur in h-NbN at strain =6%.…”
mentioning
confidence: 88%
“…It has a direct band gap of 0.16eV along the K −→ Γ path (see Fig. 2(a)), noticeably lower than that of unstrained h-NbN (0.77eV) [18]. Its phonon dispersion ( Fig.…”
mentioning
confidence: 93%
See 2 more Smart Citations
“…In 2018, Tu et al reported that ferroelectric SrBi 4 Ti 4 O 15 can be a robust photocatalyst for CO 2 reduction, which achieved a notable photocatalytic CH 4 evolution activity of 19.8 µmol g −1 h −1 and an apparent quantum efficiency of 1.33% at 365 nm. Ferroelectric hysteresis loop, piezo‐response force microscopy (PFM) and theoretical calculations demonstrated that a strong ferroelectric spontaneous polarization distributes along the [100] direction of SrBi 4 Ti 4 O 15 , and both electrons and holes showed the smallest effective mass, facilitating charge transfer. [ 85 ]…”
Section: Piezoelectric Polarization Promoted Photo(electro)catalysismentioning
confidence: 99%