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Nanokompozyty polimerowe zawierające nanocząstki domieszkowanego Al2O3 wykazujące fotoluminescencję

Paweł Polis

Abstract

In the present work investigation results of the acquiring Al2O3 nanopowders doped with rare earth metals (RE: Yb3+, Er3+) have been presented. An innovative method of synthesis Al2O3:RE3+ nanopowders using aluminum metal-organic compounds and lanthanide organic derivatives have been developed. This method allows producing Al2O3:RE3+ nanopowders characterized by average particle size in the range between 34 nm and 142 nm and average agglomerate size in the range between 0.22 μm and 16.3 μm. The acquired Al2O3:RE3+ nanopowders were characterized by strongly developed surface area (over 340 m2/g-1) and also high open porosity value. The nanopowders present also satisfactory luminescence parameters, the emission spectra exhibit spectroscopic features typical for ytterbium and erbium ions. The technology of manufacturing PMMA–Al2O3:RE3+ nanocomposites have been developed and optimized. The developed method allows producing nanocomposites characterized by decent level of agglomeration, good homogeneity and physical quality. The stereological analysis of PMMA–Al2O3:RE3+ nanocomposites surface indicate that average particle size range from 116 nm to 220 nm and average agglomerates size range between 0.44 μm to 1.42 μm. The obtained results indicate that agglomeration process intense with the Al2O3:RE3+ nanopowder addition, while the nanocomposite with 2% weight Al2O3:RE3+ addition present the best stereological results. The manufactured PMMA–Al2O3:RE3+ nanocomposite present luminescent properties, confirming possibility of obtaining the optically active material. The spectroscopic analysis reveal that the nanocomposite with the participation of Yb3+ ions present the most efficient luminescence properties.
Record ID
WUTa52d35976fc84d28bc40a6c91ee2f246
Diploma type
Doctor of Philosophy
Author
Paweł Polis Paweł Polis,, Undefined Affiliation
Title in Polish
Nanokompozyty polimerowe zawierające nanocząstki domieszkowanego Al2O3 wykazujące fotoluminescencję
Language
(pl) Polish
Certifying Unit
Faculty of Materials Science and Engineering (FMSE)
Discipline
material sciences and engineering / (technology domain) / (technological sciences)
Status
Finished
Start date
30-11-2012
Defense Date
04-07-2014
Title date
04-07-2014
Supervisor
Pages
128
Keywords in English
s
Abstract in English
In the present work investigation results of the acquiring Al2O3 nanopowders doped with rare earth metals (RE: Yb3+, Er3+) have been presented. An innovative method of synthesis Al2O3:RE3+ nanopowders using aluminum metal-organic compounds and lanthanide organic derivatives have been developed. This method allows producing Al2O3:RE3+ nanopowders characterized by average particle size in the range between 34 nm and 142 nm and average agglomerate size in the range between 0.22 μm and 16.3 μm. The acquired Al2O3:RE3+ nanopowders were characterized by strongly developed surface area (over 340 m2/g-1) and also high open porosity value. The nanopowders present also satisfactory luminescence parameters, the emission spectra exhibit spectroscopic features typical for ytterbium and erbium ions. The technology of manufacturing PMMA–Al2O3:RE3+ nanocomposites have been developed and optimized. The developed method allows producing nanocomposites characterized by decent level of agglomeration, good homogeneity and physical quality. The stereological analysis of PMMA–Al2O3:RE3+ nanocomposites surface indicate that average particle size range from 116 nm to 220 nm and average agglomerates size range between 0.44 μm to 1.42 μm. The obtained results indicate that agglomeration process intense with the Al2O3:RE3+ nanopowder addition, while the nanocomposite with 2% weight Al2O3:RE3+ addition present the best stereological results. The manufactured PMMA–Al2O3:RE3+ nanocomposite present luminescent properties, confirming possibility of obtaining the optically active material. The spectroscopic analysis reveal that the nanocomposite with the participation of Yb3+ ions present the most efficient luminescence properties.
Thesis file
  • File: 1
    Polis.pdf
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Citation count
2

Uniform Resource Identifier
https://repo.pw.edu.pl/info/phd/WUTa52d35976fc84d28bc40a6c91ee2f246/
URN
urn:pw-repo:WUTa52d35976fc84d28bc40a6c91ee2f246

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