KCaCl3:Ce晶体的生长及发光性能

人工晶体学报 ›› 2022, Vol. 51 ›› Issue (1): 21-26.

KCaCl₃:Ce晶体的生长及发光性能

沈轶明¹, 李嫚¹, 杨晨乐¹, 朱姝俊¹, 潘尚可^1,2, 潘建国^1,2

1.宁波大学材料科学与化学工程学院,宁波 315211;
2.浙江省光电探测材料及器件重点实验室,宁波 315211

收稿日期:2021-09-29 出版日期:2022-01-15 发布日期:2022-02-09
通讯作者: 潘建国,博士,教授。E-mail:panjianguo@nbu.edu.cn
作者简介:沈轶明(1995—),男,浙江省人,硕士研究生。E-mail:imingshen@163.com
基金资助:
国家自然科学基金(61775108,61875096)

Growth and Luminescent Properties of KCaCl₃:Ce Crystals

SHEN Yiming¹, LI Man¹, YANG Chenyue¹, ZHU Shujun¹, PAN Shangke^1,2, PAN Jianguo^1,2

1. School of Materials Science and Chemical Engineering, Ningbo University, Ningbo 315211, China;
2. Key Laboratory of Photoelectric Detection Materials and Devices of Zhejiang Province, Ningbo 315211, China

Received:2021-09-29 Online:2022-01-15 Published:2022-02-09

摘要/Abstract

摘要： 采用坩埚下降法生长出不同摩尔分数Ce³⁺(1%、2%、4%、6%、8%)掺杂的KCaCl₃:Ce单晶。晶体属于正交晶系,晶胞参数为a=0.756 0 nm,b=1.048 2 nm,c=0.726 6 nm。热重分析仪测得熔点为740 ℃,透过率测试显示晶体在可见光波段均具有较好光学透过率。对晶体的光致发光光谱、光致衰减时间、X射线激发发射光谱、透过率等光学性能进行了表征。光致发光光谱显示KCaCl₃:Ce晶体在358 nm和378 nm波长左右有宽的发射峰,符合Ce³⁺的5d₁→²F_5/2和5d₁→²F_7/2能级跃迁,通过拟合,KCaCl₃:Ce晶体的衰减时间在30 ns左右。晶体在X射线激发下均表现出优异的X射线发光性能。

关键词: KCaCl₃:Ce, 坩埚下降法, 闪烁晶体, 光致发光, 衰减时间, X射线发光

Abstract: The single crystals of KCaCl₃:Ce doped with different mole fraction of Ce³⁺ ion concentrations(1%, 2%, 4%, 6%, 8%) were successfully grown by Bridgman method. The crystals belong to orthorhombic system, the cell parameters have been determined as: a=0.756 0 nm, b=1.048 2 nm, c=0.726 6 nm. The melting point measured by the thermogravimetric analyzer are 740 ℃. The photoluminescence spectrum, decay time, X-ray excitation emission spectrum and optical transmittance were characterized. The transmittance shows it has good optical transmittance in visible band. The photoluminescence spectra of KCaCl₃:Ce exhibit the two broad emission peaks locate at 358 nm and 378 nm, corresponding to Ce³⁺5d₁→²F_5/2 and 5d₁→²F_7/2 energy level transition; the scintillating decay time of the KCaCl₃:Ce is about 30 ns under ultraviolet excitation. Moreover, all crystals exhibit excellent X-ray liminescence properties under X-ray excitation.

Key words: KCaCl₃:Ce, Bridgman method, scintillation crystal, photoluminescence, decay time, X-ray luminescence

中图分类号:

O782

沈轶明, 李嫚, 杨晨乐, 朱姝俊, 潘尚可, 潘建国. KCaCl₃:Ce晶体的生长及发光性能[J]. 人工晶体学报, 2022, 51(1): 21-26.

SHEN Yiming, LI Man, YANG Chenyue, ZHU Shujun, PAN Shangke, PAN Jianguo. Growth and Luminescent Properties of KCaCl₃:Ce Crystals[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(1): 21-26.

参考文献

[1] WEBER M J. Scintillation: mechanisms and new crystals[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2004, 527(1/2): 9-14.
[2] 徐兰兰,孙丛婷,薛冬峰.稀土闪烁晶体研究进展[J].中国科学:技术科学,2016,46(7):657-673.
XU L L, SUN C T, XUE D F. Recent advances in rare earth scintillation crystals[J]. Scientia Sinica (Technologica), 2016, 46(7): 657-673(in Chinese).
[3] BOURRET-COURCHESNE E D, BIZARRI G A, BORADE R, et al. Crystal growth and characterization of alkali-earth halide scintillators[J]. Journal of Crystal Growth, 2012, 352(1): 78-83.
[4] HIGGINS W M, CHURILOV A, LOEF E V, et al. Crystal growth of large diameter LaBr₃:Ce and CeBr₃[J]. Journal of Crystal Growth, 2008, 310: 2085-2089.
[5] VAN LOEF E V D, DORENBOS P, VAN EIJK C W E. The scintillation mechanism in LaCl₃:Ce₃[J]. Journal of Physics: Condensed Matter, 2003, 15(8): 1367-1375.
[6] 李嫚,耿巨峰,王昊宇,等.Eu²⁺掺杂KCaCl₃晶体的生长及发光性能[J].无机化学学报,2021,37(3):443-447.
LI M, GENG J F, WANG H Y, et al. Growth and luminescence properties of Eu²⁺ doped KCaCl₃ crystal[J]. Chinese Journal of Inorganic Chemistry, 2021, 37(3): 443-447(in Chinese).
[7] LINDSEY A C, ZHURAVLEVA M, STAND L, et al. Crystal growth and characterization of europium doped KCaI₃, a high light yield scintillator[J]. Optical Materials, 2015, 48: 1-6.
[8] LOYD M, LINDSEY A, WU Y T, et al. Growth of large size (≥38 mm diameter) KCaI₃:Eu scintillator crystals[J]. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 2019, 914: 8-14.
[9] ZHURAVLEVA M, BLALOCK B, YANG K, et al. New single crystal scintillators: CsCaCl₃:Eu and CsCaI₃:Eu[J]. Journal of Crystal Growth, 2012, 352(1): 115-119.
[10] YANG K, ZHURAVLEVA M, MELCHER C L. Crystal growth and characterization of CsSr_1-xEu_xI₃ high light yield scintillators[J]. Physica Status Solidi (RRL)-Rapid Research Letters, 2011, 5(1): 43-45.
[11] CHERGINETS V L, REBROVA N V, GRIPPA A Y, et al. Scintillation properties of CsSrX₃:Eu²⁺ (CsSr_1-yEu_yX₃, X=Cl, Br; 0≤y≤0.05) single crystals grown by the Bridgman method[J]. Materials Chemistry and Physics, 2014, 143(3): 1296-1299.
[12] REBROVA N V, GRIPPA A Y, PUSHAK A S, et al. Crystal growth and characterization of Eu²⁺ doped RbCaX₃ (X=Cl, Br) scintillators[J]. Journal of Crystal Growth, 2017, 466: 39-44.
[13] SHWETHA G, KANCHANA V, VAITHEESWARAN G. CsMgCl₃: a promising cross luminescence material[J]. Journal of Solid State Chemistry, 2015, 227: 110-116.
[14] KOBAYASHI M, OMATA K, SUGIMOTO S, et al. Scinillation characteristics of CsPbCl₃ single crystals[J]. Nuclear Instruments and Methods in Physics Research A, 2008, 592: 369-373.
[15] FUJIMOTO Y, SAEKI K, YANAGIDA T, et al. Luminescence and scintillation properties of TlCdCl₃ crystal[J]. Radiation Measurements, 2017, 106: 151-154.
[16] HAWRAMI R, ARIESANTI E, WEI H, et al. Intrinsic scintillators: TlMgCl₃ and TlCaI₃[J]. Journal of Crystal Growth, 2017, 475: 216-219.
[17] KHAN A, ROOH G, KIM H J, et al. Intrinsically activated TlCaCl₃: a new halide scintillator for radiation detection[J]. Radiation Measurements, 2017, 107: 115-118.
[18] SHIMAMURA K, VÍLLORA E G, NAKAKITA S, et al. Growth and scintillation characteristics of CeF₃, PrF₃ and NdF₃ single crystals[J]. Journal of Crystal Growth, 2004, 264(1/2/3): 208-215.

KCaCl₃:Ce晶体的生长及发光性能

Growth and Luminescent Properties of KCaCl₃:Ce Crystals

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