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Author Kumar, S. Arun ♦ Kumar, K. Ashok ♦ Gunaseelan, M. ♦ Senthilselvan, J. ♦ Asokan, K.
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CALCINATION ♦ CERAMICS ♦ COPRECIPITATION ♦ DEFECTS ♦ EXCITATION ♦ LUMINESCENCE ♦ MAGNETIC RESONANCE ♦ MULTIPLETS ♦ NANOSTRUCTURES ♦ NMR IMAGING ♦ PHOSPHORS ♦ POSITRON COMPUTED TOMOGRAPHY ♦ POSITRONS ♦ POWDERS ♦ PRASEODYMIUM ADDITIONS ♦ SCANNING ELECTRON MICROSCOPY ♦ WAVELENGTHS
Abstract Pr:LuAG nanophosphor is an effective candidate in magnetic resonance imaging coupled positron emission tomography (MRI-PET) for medical imaging and scintillator applications. LuAG:Pr (0.05, 0.15 mol%) nanoscale ceramic powders were synthesized by co-precipitation method using urea as precipitant. Effect of antisite defect on structure and luminescence behavior was investigated. Pr:LuAG nanoceramic powders are found crystallized in cubic structure by high temperature calcination at 1400 °C and it shows antisite defect. HR-SEM analysis revealed spherically shaped Pr:LuAG nanoceramic particulate powders with ∼100 nm size. By the excitation at 450 nm, Pr:LuAG nanophosphor exhibit green to red luminescence in the wavelength range of 520 to 680 nm, which is originated from multiplet transition of Pr{sup 3+} ions.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2016-05-06
Publisher Place United States
Volume Number 1728
Issue Number 1


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