Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102279
Title: A photoluminescence study of CuInSe2 single crystals ion implanted with 5 keV hydrogen
Authors: Yakushev, M. V.
Krustok, J.
Grossberg, M.
Volkov, V. A.
Mudryi, A. V.
Martin, R. W.
Issue Date: 2016
Publisher: Institute of Physics Publishing
Citation: A photoluminescence study of CuInSe2 single crystals ion implanted with 5 keV hydrogen / M. V. Yakushev, J. Krustok, M. Grossberg, et al. — DOI 10.1088/0022-3727/49/10/105108 // Journal of Physics D: Applied Physics. — 2016. — Vol. 49. — Iss. 10. — 105108.
Abstract: CuInSe2 single crystals ion implanted with 5 keV hydrogen at doses from 3 × 1014 to 1016 cm-2 are studied by photoluminescence (PL). The PL spectra before and after implantation reveal two bands, a main dominant band centred at 0.96 eV and a lower intensity band centred at 0.93 eV. Detailed analysis of the shape of these bands, their temperature and excitation intensity dependencies allow the recombination mechanisms to be identified as band-to-tail (BT) and band-to-impurity (BI), respectively. The implantation causes gradual red shifts of the bands increasing linearly with the dose. The average depth of potential fluctuations is also estimated to increase with the dose and saturates for doses above 1015 cm-2. A model is proposed which associates the potential fluctuations with the antisite defects copper on indium site and indium on copper site. The saturation is explained by full randomization of copper and indium atoms on the cation sub-lattice. © 2016 IOP Publishing Ltd.
Keywords: CUINSE2
ION-IMPLANTATION
PHOTOLUMINESCENCE
COPPER
CRYSTAL IMPURITIES
INDIUM
IONS
PHOTOLUMINESCENCE
POINT DEFECTS
SINGLE CRYSTALS
ANTI-SITE DEFECT
COPPER SITES
CUINSE2
EXCITATION INTENSITY
INDIUM ATOMS
ION IMPLANTED
POTENTIAL FLUCTUATIONS
RECOMBINATION MECHANISMS
ION IMPLANTATION
URI: http://hdl.handle.net/10995/102279
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84960154131
PURE ID: 694718
ISSN: 223727
DOI: 10.1088/0022-3727/49/10/105108
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-84960154131.pdf323,32 kBAdobe PDFView/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.