Unraveling Pr~(3+) 5d-4f emission in LiLa_9(SiO_4)_6O_2 crystals doped with Pr~(3+) ions

Ivanovskikh Konstantin V; Shi Qiufeng; Bettinelli Marco; Pustovarov Vladimir A.

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Unraveling Pr~(3+) 5d-4f emission in LiLa_9(SiO_4)_6O_2 crystals doped with Pr~(3+) ions

机译：阐明掺有Pr〜（3+）离子的LiLa_9（SiO_4）_6O_2晶体中Pr〜（3+）5d-4f的发射

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LiLa9(SiO4)(6)O-2 (LLSO) crystals doped with Pr3+ ions were grown using the slow cooling flux method. The crystals were characterized by means of luminescence and optical spectroscopy and luminescence decay measurements upon excitation in UV, VUV and X-ray range including using synchrotron radiation sources. The spectroscopic data revealed the presence Pr3+ 5d 4f emission and excitation bands related to Pr3+ ions replacing La3+ i n two nonequivalent positions, and features related Pr3+ 4f -> 4f emission. The photon cascade emission is not observed in LLSO:Pr3+, since Pr3+ S-1(0) state is above the bottom of 4f(n-1)5d mixed-states band. Apart from the emission features related to Pr3+, a defect-related emission was observed upon UV, VUV, and ionizing radiation excitation. Presence of the defects was shown with thermoluminescence measurements and suggested to be the main reason for suppression the 5d -> 4f emission. Peculiarities of host-to-impurity energy transfer are analyzed and discussed. (C) 2018 Elsevier B.V. All rights reserved.

机译：使用慢冷却通量法生长了掺有Pr3 +离子的LiLa9（SiO4）（6）O-2（LLSO）晶体。通过在UV，VUV和X射线范围内激发，包括使用同步加速器辐射源，通过发光和光谱学和发光衰减测量来表征晶体。光谱数据显示存在Pr3 + 5d 4f发射和与Pr3 +离子相关的激发带，在两个非等价位置取代了La3 +，并具有与Pr3 + 4f-> 4f发射相关的特征。在LLSO：Pr3 +中未观察到光子级联发射，因为Pr3 + S-1（0）状态高于4f（n-1）5d混合态带的底部。除了与Pr3 +有关的发射特征外，在UV，VUV和电离辐射激发下还观察到与缺陷相关的发射。通过热致发光测量显示出缺陷的存在，并被认为是抑制5d-> 4f发射的主要原因。分析并讨论了主体到杂质的能量转移的特殊性。（C）2018 Elsevier B.V.保留所有权利。

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来源
《Optical Materials》 |2018年第5期|108-114|共7页
作者
Ivanovskikh Konstantin V; Shi Qiufeng; Bettinelli Marco; Pustovarov Vladimir A.;
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作者单位

Ural Fed Univ 19 Mira St Ekaterinburg 620002 Russia;

Taiyuan Univ Technol Taiyuan 030024 Shanxi Peoples R China;

Univ Verona Dept Biotechnol Luminescent Mat Lab Str Le Grazie 15 I-37134 Verona Italy;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种 eng
中图分类
关键词
LiLa9(SiO4)(6)O-2; Pr3+ 5d-4f transitions; Host-to-impurity energy transfer; UV-VUV spectroscopy; Synchrotron radiation; X-ray and cathode ray excitation;

机译：LiLa9（SiO4）（6）O-2;Pr3 + 5d-4f转变;主机到杂质的能量转移;紫外-紫外光谱;同步辐射X射线和阴极射线激发;

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1. Unraveling Pr~(3+) 5d-4f emission in LiLa_9(SiO_4)_6O_2 crystals doped with Pr~(3+) ions [J] . Ivanovskikh Konstantin V, Shi Qiufeng, Bettinelli Marco, Optical Materials . 2018,第May期

机译：阐明掺有Pr〜（3+）离子的LiLa_9（SiO_4）_6O_2晶体中Pr〜（3+）5d-4f的发射
2. Impurity and defect-related luminescence of Ce~(3+) doped LiLa_9(SiO_4)_6O_2 crystals upon UV-VUV, X-ray and cathode ray excitation [J] . Pustovarov Vladimir A., Ivanovskikh Konstantin V., Shi Qiufeng, Optical Materials . 2018,第OCTa期

机译：掺杂Ce〜（3+）的LiLa_9（SiO_4）_6O_2晶体在UV-VUV，X射线和阴极射线激发下的杂质和与缺陷有关的发光
3. Impurity and defect-related luminescence of Ce~(3+) doped LiLa_9(SiO_4)_6O_2 crystals upon UV-VUV, X-ray and cathode ray excitation [J] . Pustovarov Vladimir A., Ivanovskikh Konstantin V., Shi Qiufeng, Optical Materials . 2018,第Octa期

机译：掺杂Ce〜（3+）的LiLa_9（SiO_4）_6O_2晶体在UV-VUV，X射线和阴极射线激发下的杂质和与缺陷有关的发光
4. Luminescence of LiLa_9(SiO_4)60_2 Silicate Crystals Doped with Ce~(3+) and Pr~(3+) Ions [C] . D. V. Miroshnichenko, V. A. Pustovarov International Young Researchers Conference: Physics, Technologies and Innovation . 2017

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Unraveling Pr~(3+) 5d-4f emission in LiLa_9(SiO_4)_6O_2 crystals doped with Pr~(3+) ions

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