Structural and optical properties of Cerium doped Calcium Fluoride nanoparticles prepared by copercipitation

International Journal of Nano Dimension

مقاله 6، دوره 3، شماره 4، شهریور 2013، صفحه 289-296   

نوع مقاله: Reasearch Paper

شناسه دیجیتال (DOI): 10.7508/ijnd.2012.04.005

نویسندگان

M. R. Khanlary^{* 1}؛ Sh. Ghammamy²؛ M. Ghomi Gilvaee¹

¹Physics department of Imam Khomeini international university, Qazvin, Iran.

²Chemistry department of Imam Khomeini international university, Qazvin, Iran.

چکیده

Calcium fluoride nanoparticles with special amount of cerium ion (%1) were synthesized by coprecipitation. Fourier transforms infrared spectroscopy (FTIR), X-ray diffraction (XRD), absorption and photoluminescence (PL) from CaF₂Ce nanoparticles has been investigated. FTIR spectra reveal that there are some amounts of OH, NO₃ and other organic functional groups on the particle surfaces before the post annealing process. X-ray diffraction results indicate an improvement in crystalline quality with annealing. Intensity of fluorescent bands as well as the absorption edge of the prepared nanoparticles is also very relevant to the annealing temperature.

کلیدواژه‌ها

coprecipitation؛ nanoparticles؛ Calcium fluoride؛ Annealing؛ Photoluminescence