Visualization of highly graded oxygen vacancy profiles in lead-zirconate-titanate by spectrally resolved cathodoluminescence spectroscopy
Visualization of highly graded oxygen vacancy profiles in lead-zirconate-titanate by spectrally resolved cathodoluminescence spectroscopy
The ultraviolet and visible cathodoluminescence (CL) emitted at room temperature from bulk hard lead-zirconate-titanate polycrystalline perovskite has been systematically collected before and after an annealing cycle conducted in a reducing atmosphere. Spectroscopic assessments have been made of the in-depth stoichiometric profile developed upon annealing from the sample surface toward the subsurface. Trapping of electronic charge and local atomic scale distortions in the perovskite oxygen octahedron influences the variation observed in visible CL emission, while lattice distortions upon annealing directly arise from the formation of oxygen vacancies.
Matsutani, Atsuo
ec240e1a-db61-4fec-b60e-04850528110f
Luo, Zhenhua
eb242e50-a73e-474f-809f-4924cfed68c2
Pojprapai, Soodkhet
19da0711-ccd8-44c7-8499-b19e3caf1956
Hoffman, Mark
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Pezzotti, Giuseppe
c9729863-cd30-43e5-8614-7d78412885a6
2009
Matsutani, Atsuo
ec240e1a-db61-4fec-b60e-04850528110f
Luo, Zhenhua
eb242e50-a73e-474f-809f-4924cfed68c2
Pojprapai, Soodkhet
19da0711-ccd8-44c7-8499-b19e3caf1956
Hoffman, Mark
1d549729-a5d6-4241-a467-cac304447980
Pezzotti, Giuseppe
c9729863-cd30-43e5-8614-7d78412885a6
Matsutani, Atsuo, Luo, Zhenhua, Pojprapai, Soodkhet, Hoffman, Mark and Pezzotti, Giuseppe
(2009)
Visualization of highly graded oxygen vacancy profiles in lead-zirconate-titanate by spectrally resolved cathodoluminescence spectroscopy.
Applied Physics Letters.
(doi:10.1063/1.3245317).
Abstract
The ultraviolet and visible cathodoluminescence (CL) emitted at room temperature from bulk hard lead-zirconate-titanate polycrystalline perovskite has been systematically collected before and after an annealing cycle conducted in a reducing atmosphere. Spectroscopic assessments have been made of the in-depth stoichiometric profile developed upon annealing from the sample surface toward the subsurface. Trapping of electronic charge and local atomic scale distortions in the perovskite oxygen octahedron influences the variation observed in visible CL emission, while lattice distortions upon annealing directly arise from the formation of oxygen vacancies.
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Visualization of highly graded oxygen vacancy profiles in lead-zirconate-titanate by spectrally resolved cathodoluminescence spectroscopy.pdf
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Published date: 2009
Organisations:
Electronics & Computer Science
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Local EPrints ID: 364514
URI: http://eprints.soton.ac.uk/id/eprint/364514
ISSN: 0003-6951
PURE UUID: dfb5d4cc-6ede-49c3-b1db-3cf958c3ae90
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Date deposited: 02 May 2014 09:36
Last modified: 14 Mar 2024 16:37
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Author:
Atsuo Matsutani
Author:
Zhenhua Luo
Author:
Soodkhet Pojprapai
Author:
Mark Hoffman
Author:
Giuseppe Pezzotti
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