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RESEARCH PRODUCT

Luminescence Properties of ZnO Nanocrystals and Ceramics

Claude J.a. MontyLarisa GrigorjevaDonāts MillersAleksandr KalinkoWitold LojkowskiVladimir PankratovJānis GrabisKrisjanis Smits

subject

Nuclear and High Energy PhysicsMaterials scienceSolar furnaceCondensed Matter::OtherDopingWide-bandgap semiconductorCathodoluminescenceCondensed Matter::Mesoscopic Systems and Quantum Hall EffectHydrothermal circulationCondensed Matter::Materials ScienceNuclear Energy and EngineeringNanocrystalChemical engineeringCondensed Matter::Superconductivityvisual_artPhysics::Atomic and Molecular Clustersvisual_art.visual_art_mediumCeramicElectrical and Electronic EngineeringLuminescence

description

The luminescence excitation spectra, luminescence spectra and the nanosecond-scale decay kinetics were studied. The ZnO and ZnO:Al nanopowders were prepared by vaporization-condensation in a solar furnace using different raw powders: commercial, hydrothermal and those obtained by plasma synthesis. Exciton-phonon as well as exciton-exciton interaction processes in nanopowders, a bulk crystal and ZnO ceramics were studied and compared. The fast decay and low afterglow intensity of ZnO nanopowders and ceramics support these materials for scintillators.

https://doi.org/10.1109/tns.2008.921931