Published September 2017 | Version v1
Journal article Metadata-only

Photoacoustic and photoluminescence studies on ThO2:Sm3+

Creators

  • 1. Homi Bhabha National Institute, Anushaktinagar, Mumbai (India)
  • 2. Bhabha Atomic Research Centre, Mumbai (India). Product Development Section
  • 3. Bhabha Atomic Research Centre, Mumbai (India). Radiochemistry Division

Description

Nanocrystalline ThO2:Sm3+ was synthesized using wet-chemical route and characterized using X-ray diffraction (XRD), photoacoustic (PA) and photoluminescence (PL) spectroscopy. PA absorptions of Sm3+ doped samples are found to be quite weak as compared to Nd3+, while PL of Sm3+ was intense. As the energy gap between lowest luminescent levels and highest non-luminescent level in samarium ion is around 7000 cm-1; it is highly fluorescing compared to Nd3+ which has close by levels. Through photoacoustic data it was pointed out that large covalent character exists in ThO2:Nd3+ compared to ThO2:Sm3+. (author)

Additional details

Publishing Information

Journal Title
Journal of Radioanalytical and Nuclear Chemistry
Journal Volume
313
Journal Issue
3
Journal Page Range
p. 547-553
ISSN
0236-5731
CODEN
JRNCDM

INIS

Country of Publication
Hungary
Country of Input or Organization
Hungary
INIS RN
48084595
Subject category
S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
Descriptors DEI
ABSORPTION; COMPARATIVE EVALUATIONS; COVALENCE; CRYSTALS; DOPED MATERIALS; ENERGY GAP; FLUORESCENCE; NANOSTRUCTURES; NEODYMIUM IONS; PHOTOACOUSTIC SPECTROSCOPY; PHOTOLUMINESCENCE; SAMARIUM; SAMARIUM IONS; SPECTROSCOPY; THORIUM OXIDES; X-RAY DIFFRACTION
Descriptors DEC
ACTINIDE COMPOUNDS; CHALCOGENIDES; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELEMENTS; EMISSION; EVALUATION; IONS; LUMINESCENCE; MATERIALS; METALS; OXIDES; OXYGEN COMPOUNDS; PHOTON EMISSION; RARE EARTHS; SCATTERING; SORPTION; SPECTROSCOPY; THORIUM COMPOUNDS

Optional Information

Notes
33 refs.