Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102291
Title: Ultraviolet-visible spectroscopic characterization of lanthanum beryllate crystals doped with Er, Nd, or Pr ions
Authors: Pustovarov, V. A.
Ogorodnikov, I. N.
Issue Date: 2016
Publisher: Maik Nauka-Interperiodica Publishing
Citation: Pustovarov V. A. Ultraviolet-visible spectroscopic characterization of lanthanum beryllate crystals doped with Er, Nd, or Pr ions / V. A. Pustovarov, I. N. Ogorodnikov. — DOI 10.1134/S1027451015060178 // Journal of Surface Investigation. — 2016. — Vol. 10. — Iss. 1. — P. 48-57.
Abstract: Spectroscopic characterization of lanthanum beryllate La2Be2O5 (BLO) single crystals doped with trivalent ions of Eu, Nd or Pr, was carried out in the ultraviolet-visible spectral range using synchrotron radiation spectroscopy in combination with conventional optical absorption and luminescence spectroscopy techniques. On the basis of the obtained data, the energy level diagram for these trivalent impurity ions in BLO host lattice was developed; the optical and electronic properties of the crystals were determined; the possibility of the 4f-4f, 4f-5d and charge transfer transitions was analyzed; spectroscopic properties of the lattice defects formed during the introduction of trivalent impurity ions in the BLO host lattice, were investigated. We found that the lattice defects are responsible for a wide-band photoluminescence (PL) in the energy region of 400–600 nm. The most efficient excitation of the defect photoluminescence in the energy gap of BLO occurs in broad PL excitation-bands at 270 and 240 nm. The PL intensity of defects depends on the type of impurity ion and increases in the sequence: Pr-Nd-Er. © 2016, Pleiades Publishing, Ltd.
Keywords: DEFECT-CENTER MATERIALS
IONIC CRYSTALS
LANTHANUM BERYLLATE
LASER MATERIALS
OPTICAL PROPERTIES
ABSORPTION SPECTROSCOPY
CHARACTERIZATION
CHARGE TRANSFER
CRYSTAL IMPURITIES
DEFECTS
ELECTROMAGNETIC WAVE ABSORPTION
ELECTRONIC PROPERTIES
ERBIUM
IONS
LANTHANUM
LIGHT ABSORPTION
OPTICAL LATTICES
OPTICAL PROPERTIES
PHOTOLUMINESCENCE
SINGLE CRYSTALS
SYNCHROTRON RADIATION
ABSORPTION AND LUMINESCENCE SPECTROSCOPIES
CHARGE TRANSFER TRANSITIONS
DEFECT CENTERS
IONIC CRYSTALS
LASER MATERIALS
OPTICAL AND ELECTRONIC PROPERTIES
SPECTROSCOPIC CHARACTERIZATION
SYNCHROTRON RADIATION SPECTROSCOPY
CRYSTAL DEFECTS
URI: http://hdl.handle.net/10995/102291
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 84958794007
PURE ID: 703673
1737ce67-d91d-455a-bd3b-79488a115c77
ISSN: 10274510
DOI: 10.1134/S1027451015060178
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

Files in This Item:
File Description SizeFormat 
2-s2.0-84958794007.pdf464,96 kBAdobe PDFView/Open


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