Published April 25, 2008 | Version v1
Journal article Metadata-only

Synthesis, characterization, structural refinement and optical absorption behavior of PbWO4 powders

Creators

  • 1. LIEC, Departamento de Quimica, Universidade Federal de Sao Carlos, P.O. Box 676, 13565-905 Sao Carlos, SP (Brazil)
  • 2. Centro de Ciencias da Natureza, Departamento de Quimica, Universidade Federal do Piaui, 64049-550 Teresina, PI (Brazil)
  • 3. LIEC, Departamento de Fisico-Quimica, Instituto de Quimica, Universidade Estadual Paulista, P.O. Box 355, 14801-907 Araraquara, SP (Brazil)

Description

The present paper describes the synthesis, characterization, structural refinement and optical absorption behavior of lead tungstate (PbWO4) powders obtained by the complex polymerization method heat treated at different temperatures for 2 h in air atmosphere. PbWO4 powders were characterized by X-ray diffraction (XRD), Rietveld refinement, Fourier transform Raman (FT-Raman) spectroscopy and ultraviolet-visible (UV-vis) absorption spectroscopy measurements. XRD, Rietveld refinement and FT-Raman revealed that PbWO4 powders are free of secondary phases and crystallizes in a tetragonal structure. The UV-vis absorption spectroscopy measurements suggest the presence of intermediary energy levels into the band gap of structurally disordered powders

Availability note (English)

Available from http://dx.doi.org/10.1016/j.mseb.2008.02.003

Additional details

Identifiers

DOI
10.1016/j.mseb.2008.02.003;
PII
S0921-5107(08)00080-9;

Publishing Information

Journal Title
Materials Science and Engineering. B, Solid-State Materials for Advanced Technology
Journal Volume
150
Journal Issue
1
Journal Page Range
p. 18-25
ISSN
0921-5107
CODEN
MSBTEK

INIS

Country of Publication
Netherlands
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40036262
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ABSORPTION; ABSORPTION SPECTROSCOPY; AIR; CERAMICS; CRYSTALLIZATION; CRYSTALS; ENERGY LEVELS; FOURIER TRANSFORMATION; HEAT TREATMENTS; LEAD TUNGSTATES; OPTICAL PROPERTIES; ORDER-DISORDER TRANSFORMATIONS; POLYMERIZATION; POWDERS; RAMAN SPECTROSCOPY; SYMMETRY; SYNTHESIS; ULTRAVIOLET RADIATION; X-RAY DIFFRACTION
Descriptors DEC
CHEMICAL REACTIONS; COHERENT SCATTERING; DIFFRACTION; ELECTROMAGNETIC RADIATION; FLUIDS; GASES; INTEGRAL TRANSFORMATIONS; LASER SPECTROSCOPY; LEAD COMPOUNDS; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RADIATIONS; REFRACTORY METAL COMPOUNDS; SCATTERING; SORPTION; SPECTROSCOPY; TRANSFORMATIONS; TRANSITION ELEMENT COMPOUNDS; TUNGSTATES; TUNGSTEN COMPOUNDS

Optional Information

Copyright
Copyright (c) 2008 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.