Umesh, B and Eraiah, B and Nagabhushana, B M and Nagabhushana, H and Premkumar, H B and Shivakumara, C and Chikkahanumantharayappa, and Chakradhar, R P S (2009) Nd(2)O(3) : Eu(3+) nanocrystalline phosphor - a new potential thermoluminescing material for dosimetry. Philosophical Magazine Letters, 89 (10). pp. 589-597. ISSN 0950-0839

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Nanoparticles of trivalent Eu(3+)-doped Nd(2)O(3) phosphors have been prepared using a low-temperature solution combustion method with metal nitrate as precursor and oxalyldihydrazide as a fuel at a fairly low temperature (<500 degrees C) and in a very short time (<5 min). A powder X-ray diffraction pattern reveals that cubic Nd(2)O(3) : Eu(3+) crystallites are directly obtained without the requirement of further calcinations. The crystallite size, evaluated from Scherer's formula, was found to be in the range of 20-30 nm. The microstructure and morphology were studied by scanning electron microscopy, which showed the phosphor to be foamy and fluffy in nature. Thermoluminescence characteristics of the Nd(2)O(3) : Eu(3+) have been studied using gamma irradiation. These demonstrate that the phosphor is suitable for use as a dosimeter.

Item Type: Article
Uncontrolled Keywords: Nanocrystalline material; Dosimetry; Chemical synthesis; Luminescence
Subjects: Physical Properties
Divisions: Glass
Depositing User: Bidhan Chaudhuri
Date Deposited: 02 Mar 2012 08:01
Last Modified: 01 Apr 2016 06:46

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