Growth of cubic KTa1−xNbxO3 crystal by Czochralski method

Phase transitions investigation by Raman spectroscopy in highly diluted KTN crystals

“…The KTNx crystals (x denotes the nominal composition) with typical dimension of 3 mm × 3 mm × 2 mm were prepared by using the top-seeded solution growth method described elsewhere [10]. Temperature dependent backscattered Raman spectra at several temperatures were recorded on a Jobin-Yvon Model T64000 triple spectrometer with a spectral resolution of 2 cm −1 .…”

Influence of copper oxide on properties of potassium tantalate niobate single crystals

“…In the growth of pure KTN and ions doped KTN single crystals, Czochralski method is used widely [11]. In the Czochralski growth, the raw materials are melted in a cylindrically or bowl-like shaped crucible with a free liquid surface at the top and the heating of the melt is provided by resistance or radio-frequency heaters, thus crystal growth begins by dipping a seed crystal into the melt.…”

Controllable synthesis and luminescence of YPO4:Ln3+ (Ln = Eu and Sm) nanotubes

“…In recent years, inorganic materials play a more and more important role in fields of photocatalysis [1,2], electrooptic devices [3,4], solar cells [5], and so on. And inorganic luminescence materials/phosphors have been used in fields of light-emitting diode (LED), fluorescent tubes, field emission displays, computed tomography, and so on [6].…”

“…samples were synthesized by a precipitation process. Y(NO3 ) 3 Á 6H 2 O, Eu(NO 3 ) 3 Á6H 2 O, Sm(NO 3 ) 3 Á6H 2 O,and (NH 4 ) 2 HPO 4 were used as raw materials. Deionized water was used as solvent.…”