title: Compressive straining of bilayer phosphorene leads to extraordinary electron mobility at a new conduction band edge.
abstract: By means of hybrid DFT calculations and the deformation potential approximation, we show that bilayer phosphorene under slight compression perpendicular to its surface exhibits extraordinary room temperature electron mobility of order 7 × 10(4) cm(2) V(-1) s(-1). This is approximately 2 orders of magnitude higher than is widely reported for ground state phosphorenes and is the result of the emergence of a new conduction band minimum that is decoupled from the in-plane acoustic phonons that dominate carrier scattering.
authors.affiliation: Department of Chemistry, University College London , London WC1E 6BT, United Kingdom.
authors.forename: Henry
authors.initials: H
authors.lastname: Morgan Stewart
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Shevlin
authors.forename: C Richard A
authors.initials: CR
authors.lastname: Catlow
authors.forename: Zheng Xiao
authors.initials: ZX
authors.lastname: Guo
keywords: 2D; Phosphorene; bilayer; mobility; strain