Studying the Structural Properties of Compounds Fluoride That Blotched By In
Alhasno M, Khoudro A and Zarouri T
Published on: 2022-12-28
Abstract
In doped calcium fluoride transparent conducting powder were prepared by solid state reaction method. Structural properties of the samples were investigated as a function of various In-doping levels (x=0.00-0.04-0.05-0.06). The results of x-ray diffraction have shown that the samples are polycrystalline structure in cubic phase with preferential orientations along the (112) for In for all samples. The relative intensities, distance between crystalline planes (d), crystallite size (D) and lattice parameters (a) were determined.
Keywords
Powder; Calcium fluoride; Solid state reaction; Structural properties; Rare-earth ionsIntroduction
Calcium fluoride (CaF2) density is 3.18 (g/cm3) melting at 1633 (K) and crystalize in cubic structure with lattice constants a = 5.432 Å.
CaF2 is presently the fastest known scintillator. It has an emission component with subnanosecond decay time.[4,5].
CaF2 has several scintillation emission bands. The fast scintillation light is emitted in the UV bands centered at 220 and 200 nm.
The decay time of the fast component varies between 600 and 800 ps [2].
CaF2 has attracted much attention because of its wide range of potential applications in optoelectronic and microelectronic devices [3,6,7].
CaF2 compounds doped with rare-earth ions have been reported to display unique luminescence properties and can thus be used as scintillators [1,8-10].
Experimental Method
CaF2: In powders (x = 0.00, 0.04, 0.05, 0.06) were prepared by a solid state reaction method. Were accurately weighed in required proportions and were mixed and ground thoroughly using an Agate mortar and pestle to convert to very fine powders.
The grinding of the mixtures was carried out for 3 hours for all the powder samples. The ground powder samples were firing at 700°C for 3 hours.
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