Growing of thallium-doped KDP and ADP crystals: structural and optical parameters

• Дата: 2005
• Автори: Salo, V.I., Tkachenko, V.F., Voronov, A.P., Puzikov, V.M., Tsurikov, V.A.
• Формат: Стаття
• Мова: English
• Опубліковано: НТК «Інститут монокристалів» НАН України 2005
• Назва видання: Functional Materials
• Онлайн доступ: http://dspace.nbuv.gov.ua/handle/123456789/138875
• Назва журналу: Digital Library of Periodicals of National Academy of Sciences of Ukraine
• Цитувати: Growing of thallium-doped KDP and ADP crystals: structural and optical parameters / V.I. Salo, V.F. Tkachenko, A.P. Voronov, V.M. Puzikov, V.A. Tsurikov // Functional Materials. — 2005. — Т. 12, № 4. — С. 658-662. — Бібліогр.: 10 назв. — англ.

Studied has been the influence of thallium activator on the growth kinetics and structure perfection of KDP and ADP crystals, the character of its incorporation and distribution in the crystal lattice and the photoluminescence properties. Revealed has been thallium incorporation anisotropy in the prism and pyramid growth sectors of ADP crystals which may be caused by the charge state of the {100} and {101} growth planes. For KDP crystals, thallium incorporation is limited by the ionic radii difference of the K⁺ and Tl⁺ cations. Doping with thallium in amounts up to 1.0 mass % causes no changes in the structure perfection of KDP and ADP crystals. Thereat, for ADP crystals, there the increase of the lattice parameter а by 0.9-⁻³ ± 3-10⁻⁵ А is revealed and the decrease of the parameter с by 1.1-10⁻³±3-10⁻⁵ А. The thallium absorption band in KDP:TI⁺ and ADP:TI⁺ crystals lies near 220 nm, emission band maximum is at 280 nm.