Growth and characterization of КН₂РО₄ single crystals doped with ТіO₂ nanocrystals

• Дата: 2008
• Автори: Pritula, I., Gayvoronsky, V., Kopylovsky, M., Kolybaeva, M., Puzikov, V., Kosinova, A., Tkachenko, V., Tsurikov, V., Konstantiniva, T., Pogibko, V.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2008
• Назва видання: Functional Materials
• Теми: Technology
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/135359
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Growth and characterization of КН₂РО₄ single crystals doped with ТіO₂ nanocrystals // I. Pritula, V. Gayvoronsky, M. Kopylovsky, M. Kolybaeva, V. Puzikov, A. Kosinova, V. Tkachenko, V. Tsurikov, T. Konstantiniva, V. Pogibko // Functional Materials. — 2008. — Т. 15, № 3. — С. 420-428. — Бібліогр.: 25 назв. — англ.

For the first time, the method of temperature lowering was used to grow KDP single crystals from aqueous solutions containing TiO₂ (anatase) nanocrystals. The concentration of TiO₂ in the initial solution varied from 10⁻³ to 10⁻⁵ M/l. Using the method of three-crystal X-ray diffractometry, the presence of turns of the growth layer packets ~ 3 arcsec was revealed in KDP:TiO₂ crystals for the sectors {100} and {101}. The observed thickness of the growth packets was on the order of 20-30 μm. There was found the sixfold rise of the crystal lattice parameters Δd/d in the doped crystal relatively to the pure one caused by incorporation of the nanoparticles into the boundaries of layer-bylayer growth and a formation of semicoherent bond with the crystal. It was found the effect of giant nonlinear optical response of anatase nanoparticles manifestation in KDP crystalline matrix.