Optical orientation and alignment of excitons in ensembles of inorganic perovskite nanocrystals

M. O. Nestoklon, S. V. Goupalov, R. I. Dzhioev, O. S. Ken, V. L. Korenev, Yu. G. Kusrayev, V. F. Sapega, C. de Weerd, L. Gomez, T. Gregorkiewicz, Junhao Lin, Kazutomo Suenaga, Yasufumi Fujiwara, L. B. Matyushkin, and I. N. Yassievich
Phys. Rev. B 97, 235304 – Published 6 June 2018

Abstract

We demonstrate the optical orientation and alignment of excitons in a two-dimensional layer of CsPbI3 perovskite nanocrystals prepared by colloidal synthesis and measure the anisotropic exchange splitting of exciton levels in the nanocrystals. From the experimental data at low temperature (2 K), we obtain the average value of anisotropic splitting of bright exciton states of the order of 120μeV. Our calculations demonstrate that there is a significant contribution to the splitting due to the nanocrystal shape anisotropy for all inorganic perovskite nanocrystrals.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 7 February 2018
  • Revised 10 April 2018

DOI:https://doi.org/10.1103/PhysRevB.97.235304

©2018 American Physical Society

Physics Subject Headings (PhySH)

  1. Research Areas
  1. Physical Systems
Condensed Matter, Materials & Applied Physics

Authors & Affiliations

M. O. Nestoklon1,*, S. V. Goupalov1,2,†, R. I. Dzhioev1, O. S. Ken1, V. L. Korenev1, Yu. G. Kusrayev1, V. F. Sapega1, C. de Weerd3, L. Gomez3, T. Gregorkiewicz3, Junhao Lin4,5, Kazutomo Suenaga4, Yasufumi Fujiwara6, L. B. Matyushkin7, and I. N. Yassievich1

  • 1Ioffe Institute, 194021 St. Petersburg, Russia
  • 2Department of Physics, Jackson State University, Jackson Mississippi 39217, USA
  • 3Van der Waals-Zeeman Institute, University of Amsterdam, Science Park 904, 1098 XH Amsterdam, The Netherlands
  • 4National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, Tsukuba 305-8565, Japan
  • 5Department of Physics, Southern University of Science and Technology, Shenzhen 518055, People's Republic of China
  • 6Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
  • 7St. Petersburg Electrotechnical University LETI, 197376 St. Petersburg, Russia

  • *nestoklon@coherent.ioffe.ru
  • serguei.goupalov@jsums.edu

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 97, Iss. 23 — 15 June 2018

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
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
×