Ab initio study of electron-phonon interaction in phosphorene
Journal Article
·
· Physical Review. B, Condensed Matter and Materials Physics
- Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
The monolayer of black phosphorus, or “phosphorene,” has recently emerged as a two-dimensional semiconductor with intriguing highly anisotropic transport properties. Existing calculations of its intrinsic phonon-limited electronic transport properties so far rely on the deformation potential approximation, which is in general not directly applicable to anisotropic materials since the deformation along one specific direction can scatter electrons traveling in all directions. We perform a first-principles calculation of the electron-phonon interaction in phosphorene based on density functional perturbation theory and Wannier interpolation. Our calculation reveals that (1) the high anisotropy provides extra phase space for electron-phonon scattering, and (2) optical phonons have appreciable contributions. Both effects cannot be captured by the deformation potential calculations. Furthermore, our simulation predicts carrier mobilities ~170 cm2/Vs for both electrons and holes at 300 K, and a thermoelectric figure of merit $zT$ of up to 0.14 in $$p$$-type impurity-free phosphorene at 500 K.
- Research Organization:
- Energy Frontier Research Centers (EFRC) (United States). Solid-State Solar-Thermal Energy Conversion Center (S3TEC); Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22); US Air Force Office of Scientific Research (AFOSR)
- Grant/Contract Number:
- SC0001299; SC0001299
- OSTI ID:
- 1387065
- Alternate ID(s):
- OSTI ID: 1184677
- Journal Information:
- Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 23 Vol. 91; ISSN 1098-0121; ISSN PRBMDO
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Anisotropic ripple deformation in phosphorene
Ab initio calculation of electron–phonon coupling in monoclinic β-Ga{sub 2}O{sub 3} crystal
Journal Article
·
Tue Apr 07 00:00:00 EDT 2015
· Journal of Physical Chemistry Letters
·
OSTI ID:1332442
Ab initio calculation of electron–phonon coupling in monoclinic β-Ga{sub 2}O{sub 3} crystal
Journal Article
·
Mon Aug 15 00:00:00 EDT 2016
· Applied Physics Letters
·
OSTI ID:22590547
Related Subjects
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
charge transport
defects
electron-phonon interaction
materials and chemistry by design
mechanical behavior
optics
phonons
phosphorene
solar (photovoltaic)
solar (thermal)
solid state lighting
spin dynamics
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)
thermal conductivity
thermoelectric
thermoelectrics
SUPERCONDUCTIVITY AND SUPERFLUIDITY
charge transport
defects
electron-phonon interaction
materials and chemistry by design
mechanical behavior
optics
phonons
phosphorene
solar (photovoltaic)
solar (thermal)
solid state lighting
spin dynamics
synthesis (novel materials)
synthesis (scalable processing)
synthesis (self-assembly)
thermal conductivity
thermoelectric
thermoelectrics