Synthesis and characterization of surface modified LaF3:Ce nano particles

Author

Srinivasan, T.K. ; Venkatraman, B. ; Ponraju, D. ; Kamarudin, M. ; Arora, A.K.

Author_Institution

Radiol. Safety Div., Indira Gandhi Centre for Atomic Res., Kalpakkam, India

fYear

2011

fDate

28-30 Nov. 2011

Firstpage

528

Lastpage

531

Abstract

Oleic acid coated LaF₃:Ce nano-crystals were synthesized using the co-precipitation technique. Nano-crystals were characterized for their crystal structure, particle size, organic coating and photoluminescence behavior using X-ray diffraction, SEM, FTIR and Photoluminescence spectroscopy. The crystallite size was calculated from the XRD pattern. The surface modified nano-crystal composite exhibits emissions at 306, 372 and 445 nm. A comparison of PL emission spectrum of oleic acid coated LaF₃:Ce nano powder with 5 and 1 mole % of dopant cerium is reported.

Keywords

Fourier transform spectra; X-ray diffraction; cerium; coatings; crystal structure; crystallites; infrared spectra; lanthanum compounds; nanocomposites; nanofabrication; nanoparticles; organic compounds; particle size; photoluminescence; precipitation (physical chemistry); scanning electron microscopy; surface treatment; FTIR spectroscopy; Fourier transform infrared spectra; LaF₃:Ce; SEM; X-ray diffraction; XRD; coprecipitation; crystal structure; crystallite size; dopant cerium; nanocrystal composite; oleic acid coated lanthanum fluoride nanoparticles; organic coating; particle size; photoluminescence; scanning electron microscopy; surface treatment; Diffraction; Nanoscale devices; X-ray diffraction; X-ray scattering; Cerium; Lanthanum Fluoride; Nanocomposite; Oleic acid; PEG; Photoluminescence; Scintillator;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanoscience, Engineering and Technology (ICONSET), 2011 International Conference on

Conference_Location

Chennai

Print_ISBN

978-1-4673-0071-1

Type

conf

DOI

10.1109/ICONSET.2011.6168023

Filename

6168023