当前位置：
X-MOL 学术
›
CrystEngComm
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Epitaxial growth of single crystalline film scintillating screens based on Eu3+ doped RAlO3 (R = Y, Lu, Gd, Tb) perovskites
CrystEngComm ( IF 2.6 ) Pub Date : 2018-01-10 00:00:00 , DOI: 10.1039/c7ce02074k V. Gorbenko 1, 2, 3, 4 , T. Zorenko 1, 2, 3, 4 , K. Paprocki 1, 2, 3, 4 , F. Riva 5, 6, 7 , P. A. Douissard 5, 6, 7 , T. Martin 5, 6, 7 , Ya. Zhydachevskii 4, 8, 9 , A. Suchocki 1, 2, 3, 4, 8 , A. Fedorov 10, 11, 12, 13 , Yu. Zorenko 1, 2, 3, 4
CrystEngComm ( IF 2.6 ) Pub Date : 2018-01-10 00:00:00 , DOI: 10.1039/c7ce02074k V. Gorbenko 1, 2, 3, 4 , T. Zorenko 1, 2, 3, 4 , K. Paprocki 1, 2, 3, 4 , F. Riva 5, 6, 7 , P. A. Douissard 5, 6, 7 , T. Martin 5, 6, 7 , Ya. Zhydachevskii 4, 8, 9 , A. Suchocki 1, 2, 3, 4, 8 , A. Fedorov 10, 11, 12, 13 , Yu. Zorenko 1, 2, 3, 4
Affiliation
|
The study is dedicated to the development of scintillating screens for microimaging applications based on the single crystalline films (SCFs) of Eu3+-doped (Y,Lu,Gd,Tb)AlO3-mixed perovskites grown onto YAlO3 substrates using the liquid phase epitaxy (LPE) method with the objective to optimize their X-ray stopping power and light yield. We confirm that the Eu3+-doped YAlO3 and TbAlO3 SCFs and full set of Lu1−xGdxAlO3 SCFs with x values in the x = 0–1.0 range can be crystallized on YAlO3 substrates using the LPE technique. The structural quality of films was studied using X-ray diffraction. The optical properties of Lu1−xGdxAlO3:Eu (x = 0–1) SCFs and TbAlO3:Eu mixed perovskites were also studied in this work in comparison with YAlO3:Eu SCF counterpart using the absorption, cathodoluminescence, photoluminescence (PL) emission and excitation spectra and PL decay kinetics as well as light yield measurements under e-beam and α-particles excitation. The Gd3+ → Eu3+ and Tb3+ → Eu3+ energy transfer processes are observed in Lu1−xGdxAlO3 and TbAlO3:Eu SCFs, respectively, increasing the efficiency of the Eu3+ luminescence in the perovskite hosts. Meanwhile, the highest light yield of the cathodoluminescence (CL) and radioluminescence (RL) under excitation by α-particles is found only in YAlO3:Eu, Lu0.5Gd0.5AlO3:Eu and GdAlO3:Eu SCFs. The light yield of CL and RL of these SCFs is notably higher than that in TbAlO3:Eu and LuAlO3:Eu SCFs and they even slightly (9–11%) overcome the light yield of the conventional Gd3Ga5O12:Eu SCF screens that are used in the microimaging detectors.
中文翻译：
基于Eu 3+掺杂的RAlO 3（R = Y，Lu，Gd，Tb）钙钛矿的 单晶膜闪烁屏的外延生长
这项研究致力于基于微粉应用的闪烁屏的开发，该闪烁屏基于使用液体生长在YAlO 3衬底上的掺Eu 3+（Y，Lu，Gd，Tb）AlO 3混合钙钛矿的单晶膜（SCF）。相位外延（LPE）方法，目的是优化其X射线停止能力和光输出。我们确认，欧盟3+掺杂YALO 3和TbAlO 3个SCFS和全套鲁的1 X钆X的AlO 3 SCFS与X的值X = 0〜1.0范围内可以YALO结晶3使用LPE技术的基板。使用X射线衍射研究了膜的结构质量。在这项工作中，还利用吸收，阴极发光，YAlO 3：Eu SCF对应物，研究了Lu 1- x Gd x AlO 3：Eu（x = 0–1）SCF和TbAlO 3：Eu混合钙钛矿的光学性质。电子束和α粒子激发下的光致发光（PL）发射和激发光谱以及PL衰减动力学以及光产率测量。在Lu 1- x中观察到Gd 3+ →Eu 3+和Tb 3+ →Eu 3+的能量转移过程Gd x AlO 3和TbAlO 3：Eu SCF分别增加了钙钛矿基质中Eu 3+发光的效率。同时，仅在YAlO 3：Eu，Lu 0.5 Gd 0.5 AlO 3：Eu和GdAlO 3：Eu SCF中发现了由α粒子激发的阴极发光（CL）和放射致发光（RL）的最高光产率。CL和这些SCFS的RL的光产量比显着高于TbAlO 3：Eu和LuAlO 3：Eu的SCFS并且它们甚至略有（9-11％）克服了常规的Gd的光产率3嘎5 Ô12：Eu SCF屏幕，用于微图像检测器。
更新日期：2018-01-10
中文翻译：
基于Eu 3+掺杂的RAlO 3（R = Y，Lu，Gd，Tb）钙钛矿的 单晶膜闪烁屏的外延生长
这项研究致力于基于微粉应用的闪烁屏的开发，该闪烁屏基于使用液体生长在YAlO 3衬底上的掺Eu 3+（Y，Lu，Gd，Tb）AlO 3混合钙钛矿的单晶膜（SCF）。相位外延（LPE）方法，目的是优化其X射线停止能力和光输出。我们确认，欧盟3+掺杂YALO 3和TbAlO 3个SCFS和全套鲁的1 X钆X的AlO 3 SCFS与X的值X = 0〜1.0范围内可以YALO结晶3使用LPE技术的基板。使用X射线衍射研究了膜的结构质量。在这项工作中，还利用吸收，阴极发光，YAlO 3：Eu SCF对应物，研究了Lu 1- x Gd x AlO 3：Eu（x = 0–1）SCF和TbAlO 3：Eu混合钙钛矿的光学性质。电子束和α粒子激发下的光致发光（PL）发射和激发光谱以及PL衰减动力学以及光产率测量。在Lu 1- x中观察到Gd 3+ →Eu 3+和Tb 3+ →Eu 3+的能量转移过程Gd x AlO 3和TbAlO 3：Eu SCF分别增加了钙钛矿基质中Eu 3+发光的效率。同时，仅在YAlO 3：Eu，Lu 0.5 Gd 0.5 AlO 3：Eu和GdAlO 3：Eu SCF中发现了由α粒子激发的阴极发光（CL）和放射致发光（RL）的最高光产率。CL和这些SCFS的RL的光产量比显着高于TbAlO 3：Eu和LuAlO 3：Eu的SCFS并且它们甚至略有（9-11％）克服了常规的Gd的光产率3嘎5 Ô12：Eu SCF屏幕，用于微图像检测器。
京公网安备 11010802027423号