• Editors' Suggestion

Evolution of electronic structure of few-layer phosphorene from angle-resolved photoemission spectroscopy of black phosphorous

N. Ehlen, B. V. Senkovskiy, A. V. Fedorov, A. Perucchi, P. Di Pietro, A. Sanna, G. Profeta, L. Petaccia, and A. Grüneis
Phys. Rev. B 94, 245410 – Published 7 December 2016

Abstract

A complete set of tight-binding parameters for the description of the quasiparticle dispersion relations of black phosphorous (BP) and N-layer phosphorene with N=1... is presented. The parameters, which describe valence and conduction bands, are fit to angle-resolved photoemission spectroscopy (ARPES) data of pristine and lithium doped BP. We show that zone-folding of the experimental three-dimensional electronic band structure of BP is a simple and intuitive method to obtain the layer-dependent two-dimensional electronic structure of few-layer phosphorene. Zone folding yields the band gap of N-layer phosphorene in excellent quantitative agreement to experiments and ab initio calculations. A combined analysis of optical absorption and ARPES spectra of pristine and doped BP is used to estimate a value for the exciton binding energy of BP.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
8 More
  • Received 16 August 2016
  • Revised 11 November 2016

DOI:https://doi.org/10.1103/PhysRevB.94.245410

©2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

N. Ehlen1,*, B. V. Senkovskiy1, A. V. Fedorov1,2,3, A. Perucchi4, P. Di Pietro4, A. Sanna5, G. Profeta6, L. Petaccia4, and A. Grüneis1,†

  • 1II. Physikalisches Institut, Universität zu Köln, Zülpicher Strasse 77, 50937 Köln, Germany
  • 2IFW Dresden, P.O. Box 270116, D-01171 Dresden, Germany
  • 3St. Petersburg State University, 198504 St. Petersburg, Russia
  • 4Elettra Sincrotrone Trieste, Strada Statale 14 km 163.5, 34149 Trieste, Italy
  • 5Max-Planck-Institut für Mikrostrukturphysik, Weinberg 2, D-06120 Halle, Germany
  • 6Department of Physical and Chemical Sciences and SPIN-CNR, University of L'Aquila, Via Vetoio 10, I-67100 Coppito, Italy

  • *ehlen@ph2.uni-koeln.de
  • grueneis@ph2.uni-koeln.de

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 94, Iss. 24 — 15 December 2016

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×