Published July 2011 | Version v1
Journal article Metadata-only

Crystal field effects on the photoluminescence properties of Y1-x Lax VO4:Eu 3+ phosphors

Creators

  • 1. Pukyong National University, Cooperative Laboratory Center, Busan (Korea, Republic of)
  • 2. Pukyong National University, Department of Physics, Busan (Korea, Republic of)
  • 3. Dongeui University, Department of Physics, Busan (Korea, Republic of)
  • 4. Pusan National University, School of Materials Science and Engineering, Busan (Korea, Republic of)

Description

Y1-x Lax VO4:Eu 3+ phosphors were synthesized using a solid-state reaction. The microstructure and surface morphology of the Y1-x Lax VO4:Eu 3+ phosphors were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM), respectively. PL measurements of these phosphors revealed the characteristic Eu 3+ emissions due to 5D0→7F1 and 5D0→7F2 transitions. The Y1-x Lax VO4:Eu 3+ phosphors showed strong red emission at 619 nm, which radiated from the hypersensitive transition 5D0- 7F2 of Eu 3+ ions. In particular, the incorporation of La into the YVO4 lattice could induce a remarkable increase in PL. The highest emission intensity was observed in Y0.2La0.8VO4:Eu 3+, whose brightness was increased by more than 100 fold compared to that of the LaVO4:Eu 3+ phosphors. The Y1-x Lax VO4:Eu 3+ phosphors with highly enhanced luminescence are expected to have applications in display devices. (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1007/s00339-010-6154-6

Additional details

Identifiers

DOI
10.1007/s00339-010-6154-6;

Publishing Information

Journal Title
Applied Physics. A, Materials Science and Processing
Journal Volume
104
Journal Issue
1
Journal Page Range
p. 383-386
ISSN
0947-8396
CODEN
APAMFC

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
42082161
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ABSORPTION SPECTRA; CHEMICAL COMPOSITION; CRYSTAL FIELD; D STATES; DEBYE-SCHERRER METHOD; DOPED MATERIALS; E1-TRANSITIONS; EMISSION SPECTRA; EUROPIUM ADDITIONS; EUROPIUM IONS; EXPERIMENTAL DATA; F STATES; GRAIN SIZE; INORGANIC PHOSPHORS; LANTHANUM COMPOUNDS; M2-TRANSITIONS; MORPHOLOGY; PHOTOLUMINESCENCE; SCANNING ELECTRON MICROSCOPY; SURFACE PROPERTIES; SURFACES; TEMPERATURE RANGE 0273-0400 K; ULTRAVIOLET SPECTRA; VANADATES; VISIBLE SPECTRA; X-RAY DIFFRACTION; YTTRIUM COMPOUNDS
Descriptors DEC
ALLOYS; CHARGED PARTICLES; COHERENT SCATTERING; DATA; DIFFRACTION; DIFFRACTION METHODS; ELECTRON MICROSCOPY; EMISSION; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EUROPIUM ALLOYS; INFORMATION; IONS; LUMINESCENCE; MATERIALS; MICROSCOPY; MICROSTRUCTURE; MULTIPOLE TRANSITIONS; NUMERICAL DATA; OXYGEN COMPOUNDS; PHOSPHORS; PHOTON EMISSION; RARE EARTH ADDITIONS; RARE EARTH ALLOYS; RARE EARTH COMPOUNDS; SCATTERING; SIZE; SPECTRA; TEMPERATURE RANGE; TRANSITION ELEMENT COMPOUNDS; VANADIUM COMPOUNDS