Published June 2016 | Version v1
Journal article Metadata-only

Emerging blue-UV luminescence in cerium doped YAG nanocrystals

Creators

  • 1. Institute of Solid State Physics, University of Latvia, Riga (Lithuania)
  • 2. Research Center of Molecular Materials, University of Oulu (Finland)

Description

Time-resolved luminescence properties of Ce3+ doped Y3Al5O12 (YAG) nanocrystals have been studied by means of vacuum-ultraviolet excitation spectroscopy. It was discovered that additionally to the regular Ce3+ yellow-green emission which is well-known luminescence in YAG, new emission covering a broad spectral range from 2.7 eV to 3.5 eV was revealed in the luminescence spectra for all YAG:Ce nanocrystals studied. This blue-UV emission has fast decay time about 7 ns as well as intensive well-resolved excitation band peaking at 5.9 eV and, in contrast to green Ce3+ emission, practically is not excited at higher energies. The origin of the blue-UV emission is tentatively suggested and discussed. (copyright 2016 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssr.201600041

Additional details

Identifiers

DOI
10.1002/pssr.201600041;

Publishing Information

Journal Title
Physica Status Solidi. Rapid Research Letters (Online)
Journal Volume
10
Journal Issue
6
Journal Page Range
p. 475-479
ISSN
1862-6270
CODEN
PSSRCS

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
47087553
Subject category
S77: NANOSCIENCE AND NANOTECHNOLOGY; S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION SPECTRA; ALUMINIUM OXIDES; CERIUM ADDITIONS; CERIUM IONS; DE-EXCITATION; DOPED MATERIALS; EMISSION SPECTRA; ENERGY SPECTRA; EXCITED STATES; FERRITE GARNETS; LIFETIME; NANOSTRUCTURES; PHOTOLUMINESCENCE; ULTRAVIOLET SPECTRA; VISIBLE SPECTRA; YTTRIUM COMPOUNDS
Descriptors DEC
ALLOYS; ALUMINIUM COMPOUNDS; CERIUM ALLOYS; CHALCOGENIDES; CHARGED PARTICLES; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; IONS; LUMINESCENCE; MATERIALS; MINERALS; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; SPECTRA; TRANSITION ELEMENT COMPOUNDS