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北京科技大学 材料科学与工程学院, 北京市新能源材料与技术重点实验室, 北京 100083
[ "宋振(1986-),男,山东乳山人,博士,副教授,2014 年于北京科技大学获得博士学位,主要从事固体光谱学及发光材料构效关系的研究。Email: zsong@ustb. edu. cn" ]
[ "刘泉林(1970-),男,山东垦利县人,博士,教授,1998年于中国科学院物理研究所获得博士学位,主要从事稀土或过渡金属掺杂的无机发光材料以及长余辉发光材料的研究。Email: qlliu@ustb. edu. cn" ]
纸质出版日期:2022-09-05,
收稿日期:2022-05-09,
修回日期:2022-05-21,
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宋振,刘泉林.正多面体中的晶体场劈裂[J].发光学报,2022,43(09):1428-1435.
SONG Zhen,LIU Quan-lin.Crystal-field Splitting in Regular Polyhedron[J].Chinese Journal of Luminescence,2022,43(09):1428-1435.
宋振,刘泉林.正多面体中的晶体场劈裂[J].发光学报,2022,43(09):1428-1435. DOI: 10.37188/CJL.20220190.
SONG Zhen,LIU Quan-lin.Crystal-field Splitting in Regular Polyhedron[J].Chinese Journal of Luminescence,2022,43(09):1428-1435. DOI: 10.37188/CJL.20220190.
晶体场理论是理解稀土/过渡金属离子在无机固体中能级结构的关键。对八面体场,能级表达式及图像解释发展得较为完善,但正四面体、立方体和立方八面体中的能级劈裂情况则需要进一步明确。本文根据微扰理论详细推导了单d电子在上述规则多面体中的晶体场劈裂。基于等键长的几何模型,给出了晶体场势的准确形式。随后构建了久期方程并通过对角化得到了劈裂后的能级。正四面体、八面体、立方体和立方八面体的晶体场劈裂大小分别为40
Dq
/9、90
Dq
/9、80
Dq
/9和45
Dq
/9。最后,d电子轨道与配位离子的相对取向关系有助于形象地理解e
g
/t
2g
能级在不同正多面体中的反转现象。
Crystal-field theory plays a fundamental role in understanding the energy levels of rare-earth and transition-metal elements in inorganic hosts
.
It has been fully developed for the octahedral field, both in analytical energy level expression and pictorial understanding
.
Nevertheless, the crystal field theory for other regular cubic polyhedra, including tetrahedron, cube and cuboctahedron, needs further investigation to show the similarities and differences with the octahedral field
.
In this work, the detailed crystal-field analysis of one d electron in those regular polyhedra is presented using the perturbation method
.
The exact crystal-field potentials are derived based on geometrical models with equivalent center-ligand bond length
.
The secular matrices are constructed and diagonalized to give the split energy levels
.
The crystal-field splittings for regular tetrahedron, octahedron, cube and cuboctahedron are calculated to be 40
Dq
/9, 90
Dq
/9, 80
Dq
/9 and 45
Dq
/9
.
In the end, the relative orientations between e
g
/t
2g
orbitals and the ligands are visualized to present a vivid understanding of the magnitude reverse
.
晶体场能级劈裂多面体
crystal fieldenergy levelsplittingpolyhedron
QIAO J W, ZHAO J, LIU Q L, et al. Recent advances in solid-state LED phosphors with thermally stable luminescence [J]. J. Rare Earths, 2019, 37(6): 565-572. doi: 10.1016/j.jre.2018.11.001http://dx.doi.org/10.1016/j.jre.2018.11.001
郑鹏, 丁国真, 解荣军. Ce3+和 Eu2+掺杂荧光材料的光猝灭机理研究进展 [J]. 发光学报, 2021, 42(10): 1447-1457. doi: 10.37188/CJL.20210173http://dx.doi.org/10.37188/CJL.20210173
ZHENG P, DING G Z, XIE R J. Research progress on optical quenching of Ce3+- and Eu2+-doped luminescent materials [J]. Chin. J. Lumin., 2021, 42(10): 1447-1457. (in Chinese). doi: 10.37188/CJL.20210173http://dx.doi.org/10.37188/CJL.20210173
张亮亮, 张家骅, 郝振东, 等. Cr3+掺杂的宽带近红外荧光粉及其研究进展 [J]. 发光学报, 2019, 40(12): 1449-1459. doi: 10.3788/fgxb20194012.1449http://dx.doi.org/10.3788/fgxb20194012.1449
ZHANG L L, ZHANG J H, HAO Z D, et al. Recent progress on Cr3+ doped broad band NIR phosphors [J]. Chin. J. Lumin., 2019, 40(12): 1449-1459. (in Chinese). doi: 10.3788/fgxb20194012.1449http://dx.doi.org/10.3788/fgxb20194012.1449
ZHANG N M, TSAI Y T, FANG M H, et al. Aluminate red phosphor in light-emitting diodes: theoretical calculations, charge varieties, and high-pressure luminescence analysis [J]. ACS Appl. Mater. Interfaces, 2017, 9(28): 23995-24004. doi: 10.1021/acsami.7b06840http://dx.doi.org/10.1021/acsami.7b06840
QIAO J W, NING L X, MOLOKEEV M S, et al. Site-selective occupancy of Eu2+ toward blue-light-excited red emission in a Rb3YSi2O7∶Eu phosphor [J]. Angew. Chem., 2019, 131(33): 11645-11650. doi: 10.1002/anie.201905787http://dx.doi.org/10.1002/anie.201905787
LIN L T, NING L X, ZHOU R F, et al. Site occupation of Eu2+ in Ba2-xSrxSiO4(x=0-1.9) and origin of improved luminescence thermal stability in the intermediate composition [J]. Inorg. Chem., 2018, 57(12): 7090-7096. doi: 10.1021/acs.inorgchem.8b00773http://dx.doi.org/10.1021/acs.inorgchem.8b00773
DUNN T M, MCCLURE D S, PEARSON R G. Some Aspects of Crystal Field Theory [M]. New York: Harper & Row, 1965.
CHEN M Y, XIA Z G, MOLOKEEV M S, et al. Tuning of photoluminescence and local structures of substituted cations in xSr2Ca(PO4)2-(1-x)Ca10Li(PO4)7∶Eu2+ phosphors [J]. Chem. Mater., 2017, 29(3): 1430-1438.
WANG X J, FUNAHASHI S, TAKEDA T, et al. Structure and luminescence of a novel orange-yellow-emitting Ca1.62Eu0.38Si5O3N6 phosphor for warm white LEDs, discovered by a single-particle-diagnosis approach [J]. J. Mater. Chem. C, 2016, 4(42): 9968-9975. doi: 10.1039/c6tc02714hhttp://dx.doi.org/10.1039/c6tc02714h
林贵, 罗琦, 陈茜, 等. ZnAl2O4/CaAl12O19∶Mn4+荧光粉制备与发光性能 [J]. 发光学报, 2022, 43(4): 536-544. doi: 10.37188/cjl.20210395http://dx.doi.org/10.37188/cjl.20210395
LIN G, LUO Q, CHEN Q, et al. Preparation and luminescent properties of ZnAl2O4/CaAl12O19∶Mn4+ phosphors [J]. Chin. J. Lumin., 2022, 43(4): 536-544. (in Chinese). doi: 10.37188/cjl.20210395http://dx.doi.org/10.37188/cjl.20210395
WANG X C, ZHAO Z Y, WU Q S, et al. Synthesis, structure and photoluminescence properties of Ca2LuHf2(AlO4)3∶Ce3+, a novel garnet-based cyan light-emitting phosphor [J]. J. Mater. Chem. C, 2016, 4(48): 11396-11403. doi: 10.1039/c6tc03933bhttp://dx.doi.org/10.1039/c6tc03933b
SONG Z, LIU Q L. Effect of polyhedron deformation on the 5d energy level of Ce3+ in lanthanide aluminum perovskites [J]. Phys. Chem. Chem. Phys., 2019, 21(5): 2372-2377. doi: 10.1039/c8cp06052ehttp://dx.doi.org/10.1039/c8cp06052e
ZHAO F Y, SONG Z, LIU Q L. Novel Cr3+-activated far-red emitting phosphors with β-Ca3(PO4)2-type structure for indoor plant cultivation [J]. Int. J. Miner. Metall. Mater., 2022, 29(6): 1286-1294. doi: 10.1007/s12613-021-2363-6http://dx.doi.org/10.1007/s12613-021-2363-6
ZHOU H, CAI H, ZHAO J, et al. Crystallographic control for Cr4+ activators toward efficient NIR-Ⅱ luminescence [J]. Inorg. Chem. Front., 2022, 9(9): 1912-1919. doi: 10.1039/d2qi00217ehttp://dx.doi.org/10.1039/d2qi00217e
AVRAM N M, BRIK M G. Optical Properties of 3d⁃ions in Crystals: Spectroscopy and Crystal Field Analysis [M]. Berlin: Springer, 2013.
BRIK M G, MA C G. Theoretical Spectroscopy of Transition Metal and Rare Earth Ions: from Free State to Crystal Field [M]. New York: Jenny Stanford Publishing, 2020.
SONG Z, WANG Z Z, HE L Z, et al. After-glow, luminescent thermal quenching, and energy band structure of Ce-doped yttrium aluminum-gallium garnets [J]. J. Lumin., 2017, 192: 1278-1287. doi: 10.1016/j.jlumin.2017.09.008http://dx.doi.org/10.1016/j.jlumin.2017.09.008
SONG Z, XIA Z G, LIU Q L. Insight into the relationship between crystal structure and crystal-field splitting of Ce3+ doped garnet compounds [J]. J. Phys. Chem. C, 2018, 122(6): 3567-3574. doi: 10.1021/acs.jpcc.7b12826http://dx.doi.org/10.1021/acs.jpcc.7b12826
XIA Z G, MEIJERINK A. Ce3+-doped garnet phosphors: composition modification, luminescence properties and applications [J]. Chem. Soc. Rev., 2017, 46(1): 275-299. doi: 10.1039/c6cs00551ahttp://dx.doi.org/10.1039/c6cs00551a
薛秉国, 吕清洋, 王婷婷, 等. 钆铝石榴石(GdAG)基发光材料研究进展 [J]. 发光学报, 2020, 41(12): 1538-1553. doi: 10.37188/CJL.20200237http://dx.doi.org/10.37188/CJL.20200237
XUE B G, LYU Q Y, WANG T T, et al. Research progress of Gd3Al5O12 based luminescent materials [J]. Chin. J. Lumin., 2020, 41(12): 1538-1553. (in Chinese). doi: 10.37188/CJL.20200237http://dx.doi.org/10.37188/CJL.20200237
ZHANG D, MA X X, ZHANG Q, et al. Influence of Zn/Al molar ratio on the structural and photoluminescence performances of ZnxAl2O4∶Cr3+ phosphors [J]. J. Alloys Compd., 2016, 688: 581-587. doi: 10.1016/j.jallcom.2016.07.044http://dx.doi.org/10.1016/j.jallcom.2016.07.044
SENDEN T, BROERS F T H, MEIJERINK A. Comparative study of the Mn4+ 2E→4A2 luminescence in isostructural RE2Sn2O7∶Mn4+ pyrochlores (RE3+=Y3+, Lu3+ or Gd3+) [J]. Opt. Mater., 2016, 60: 431-437. doi: 10.1016/j.optmat.2016.08.024http://dx.doi.org/10.1016/j.optmat.2016.08.024
WANG S X, SONG Z, KONG Y W, et al. Crystal field splitting of 4fn-15d-levels of Ce3+ and Eu2+ in nitride compounds [J]. J. Lumin., 2018, 194: 461-466. doi: 10.1016/j.jlumin.2017.10.073http://dx.doi.org/10.1016/j.jlumin.2017.10.073
DORENBOS P. Crystal field splitting of lanthanide 4fn-15d-levels in inorganic compounds [J]. J. Alloys Compd., 2002, 341(1-2): 156-159. doi: 10.1016/s0925-8388(02)00056-7http://dx.doi.org/10.1016/s0925-8388(02)00056-7
宋振(1986-),男,山东乳山人,博士,副教授,2014年于北京科技大学获得博士学位,主要从事固体光谱学及发光材料构效关系的研究。. doi: 10.1016/s0925-8388(02)00056-7http://dx.doi.org/10.1016/s0925-8388(02)00056-7
E‐mail: zsong@ustb.edu.cn. doi: 10.1016/s0925-8388(02)00056-7http://dx.doi.org/10.1016/s0925-8388(02)00056-7
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