Published in

IOP Publishing, Japanese Journal of Applied Physics, 5S2(50), p. 05FC03, 2011

DOI: 10.1143/jjap.50.05fc03

IOP Publishing, Japanese Journal of Applied Physics, 5S2(50), p. 05FC03

DOI: 10.7567/jjap.50.05fc03

Links

Tools

Export citation

Search in Google Scholar

Excited States of the A and B Free Excitons in CuInSe2

Journal article published in 2011 by Michael V. Yakushev, Franziska Luckert, Clement Faugeras, Anatoli V. Karotki, Alexander V. Mudryi, Robert W. Martin ORCID
This paper is available in a repository.
This paper is available in a repository.

Full text: Download

Green circle
Preprint: archiving allowed
Upload
Orange circle
Postprint: archiving restricted
Upload
Red circle
Published version: archiving forbidden
Policy details
Data provided by SHERPA/RoMEO

Abstract

CuInSe2 single crystals, grown by the vertical Bridgman technique were studied using polarisation resolved photoluminescence (PL) at cryogenic temperatures. The emission lines related to the first (n = 2) excited states for the A and B free excitons were observed in the PL spectra at 1.0481 and 1.0516 eV, respectively. The spectral positions of these lines were used to estimate accurate values for the A and B exciton binding energies (8.5 and 8.4 meV, respectively), Bohr radii (7.5 nm), band gaps (E g A = 1.050 eV and E g B = 1.054 eV), and the static dielectric constant (11.3) assuming the hydrogenic model.