Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium
The optical and luminescence characteristics of YAG:Ce crystals grown first using the gas phase horizontal directed crystallization in reducing gas media developed by the authors have been studied. A correlation has been found between the cerium content and intensity of the absorption bands peaked a...
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| Дата: | 2008 |
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| Автори: | , , , , , |
| Формат: | Стаття |
| Мова: | English |
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НТК «Інститут монокристалів» НАН України
2008
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| Назва видання: | Functional Materials |
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| Онлайн доступ: | http://dspace.nbuv.gov.ua/handle/123456789/136544 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Цитувати: | Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium // S.V. Nizhankovsky, A.Ya. Dan`ko, V.M. Puzikov, Yu.N. Savvin, A.G. Trushkovsky, S.I. Krivonogov // Functional Materials. — 2008. — Т. 15, № 4. — С. 546-549. — Бібліогр.: 10 назв. — англ. |
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irk-123456789-1365442018-06-17T03:12:02Z Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium Nizhankovsky, S.V. Dan`ko, A.Ya. Puzikov, V.M. Savvin, Yu.N. Trushkovsky, A.G. Krivonogov, S.I. Technology The optical and luminescence characteristics of YAG:Ce crystals grown first using the gas phase horizontal directed crystallization in reducing gas media developed by the authors have been studied. A correlation has been found between the cerium content and intensity of the absorption bands peaked at 235, 270 nm and in the 250-300 nm range. A model is proposed to describe the optical absorption features of YAG:Ce crystals grown in reducing conditions. According to the model, in the presence of cerium ions, the conversion of F, F⁺ centers occurs. The 1 uminescence spectra are characterized, besides of a wide (530-540 nm) Ce³⁺ ion band, by a 400 nm band which is due to F centers. Досліджено оптичні та люмінесцентні характеристики кристалів YAG:Ce, вперше одержаних з застосуванням розроблених авторами газових технологій горизонтальної напрямної кристалізації у відновлювальних середовищах. Встановлено кореляцію вмісту церію у кристалах та інтенсивності смуг поглинання при 235, 370 нм та в області 250-300 нм. Запропоновано модель, яка описує особливості оптичного поглинання кристалів YAG:Ce, що вирощені у відновлювальних умовах. Згідно з цією моделлю, у присутності іонів церію відбувається конверсія F, F⁺-центрів. Спектри люмінесценції характеризуються, окрім широкої (530-540 нм) смуги іонів Се³⁺, лінією 400 нм, зумовленою F-центрами. Исследованы оптические и люминесцентные характеристики кристаллов YAG:Ce, впервые полученных с использованием разработанных авторами газовых технологий горизонтальной направленной кристаллизации в восстановительных средах. Установлена корреляция содержания церия в кристаллах и интенсивности полос поглощения при 235, 370 нм и в области 250-300 нм. Предложена модель, описывающая особенности оптического поглощения кристаллов YAG:Ce, выращенных в восстановительных условиях. Согласно этой модели, в присутствии ионов церия происходит конверсия F, F⁺-центров. Спектры люминесценции характеризуются, кроме широкой полосы (530- 540 нм) ионов Се³⁺, линией 400 нм, за которую ответственны F-центры. 2008 Article Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium // S.V. Nizhankovsky, A.Ya. Dan`ko, V.M. Puzikov, Yu.N. Savvin, A.G. Trushkovsky, S.I. Krivonogov // Functional Materials. — 2008. — Т. 15, № 4. — С. 546-549. — Бібліогр.: 10 назв. — англ. 1027-5495 http://dspace.nbuv.gov.ua/handle/123456789/136544 en Functional Materials НТК «Інститут монокристалів» НАН України |
| institution |
Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| collection |
DSpace DC |
| language |
English |
| topic |
Technology Technology |
| spellingShingle |
Technology Technology Nizhankovsky, S.V. Dan`ko, A.Ya. Puzikov, V.M. Savvin, Yu.N. Trushkovsky, A.G. Krivonogov, S.I. Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium Functional Materials |
| description |
The optical and luminescence characteristics of YAG:Ce crystals grown first using the gas phase horizontal directed crystallization in reducing gas media developed by the authors have been studied. A correlation has been found between the cerium content and intensity of the absorption bands peaked at 235, 270 nm and in the 250-300 nm range. A model is proposed to describe the optical absorption features of YAG:Ce crystals grown in reducing conditions. According to the model, in the presence of cerium ions, the conversion of F, F⁺ centers occurs. The 1 uminescence spectra are characterized, besides of a wide (530-540 nm) Ce³⁺ ion band, by a 400 nm band which is due to F centers. |
| format |
Article |
| author |
Nizhankovsky, S.V. Dan`ko, A.Ya. Puzikov, V.M. Savvin, Yu.N. Trushkovsky, A.G. Krivonogov, S.I. |
| author_facet |
Nizhankovsky, S.V. Dan`ko, A.Ya. Puzikov, V.M. Savvin, Yu.N. Trushkovsky, A.G. Krivonogov, S.I. |
| author_sort |
Nizhankovsky, S.V. |
| title |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium |
| title_short |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium |
| title_full |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium |
| title_fullStr |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium |
| title_full_unstemmed |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium |
| title_sort |
optical and luminescence characteristics of yag:ce crystals grown by horizontal directed crystallization in reducing gas medium |
| publisher |
НТК «Інститут монокристалів» НАН України |
| publishDate |
2008 |
| topic_facet |
Technology |
| url |
http://dspace.nbuv.gov.ua/handle/123456789/136544 |
| citation_txt |
Optical and luminescence characteristics of YAG:Ce crystals grown by horizontal directed crystallization in reducing gas medium // S.V. Nizhankovsky, A.Ya. Dan`ko, V.M. Puzikov, Yu.N. Savvin, A.G. Trushkovsky, S.I. Krivonogov // Functional Materials. — 2008. — Т. 15, № 4. — С. 546-549. — Бібліогр.: 10 назв. — англ. |
| series |
Functional Materials |
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2023-10-18T21:13:55Z |
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2023-10-18T21:13:55Z |
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