实验优化设计Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+)的合成及长余辉特性
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摘要
为了得到最长有效余辉时间的Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+)荧光粉,应用二次通用旋转组合设计对实验进行全程优化,建立了稀土离子掺杂浓度Eu~(2+),Dy~(3+)和有效余辉时间的二元二次回归方程模型,应用遗传算法计算得到有效余辉时间的理论最大值.采用高温固相法合成了最优掺杂浓度Sr_2MgSi_2O_7:0.5mol%Eu~(2+),1.0mol%Dy~(3+)的荧光粉,在370nm激发下观察到了465nm的特征发射,这归因于Eu~(2+)的4f65d1—4f7跃迁.测量了最优荧光粉的热释发光特性,计算得到了陷阱深度为0.688eV,讨论了长余辉发光的特性.
An optimization method is used to obtain the longest effective afterglow time in the rare earth ions doped long lasting phosphors. The effective afterglow time is defined as the time for the intensity to decays to 10% of the initial intensity. In this paper, we choose the Eu~(2+) and Dy~(3+) coped Sr_2MgSi_2O_7 as the experimental objects.In order to obtain the longest effective afterglow time of Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+) phosphor, the experiment is optimized by quadratic general rotation combination design. The Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+) phosphor are synthesized via a solid-state reaction. The effective afterglow time is obtained by the afterglow decay curve. A binary quadratic regression equation model relating the rare earth ions Eu~(2+)/Dy~(3+) doping concentrations to the effective afterglow time is established. The genetic algorithm is used to solve the equation. The optimal doping concentration of Eu~(2+) and Dy~(3+) are 0.5 mol% and 1.0 mol%, respectively. The theoretical maximum value of effective afterglow time is calculated to be 321 s. The phosphor with the optimal doping concentration Sr_2MgSi_2O_7:0.5mol% Eu~(2+), 1.0 mol% Dy~(3+) are synthesized by the same method as that of synthesizing the frontal samples. The X-ray diffraction shows that the optimal sample prepared is of pure phase, and the doping ions have no effect on the lattice structure of the matrix. A characteristic emission at 465 nm due to the 4f~65d~1-4f~7 transition of Eu~(2+)is observed under the 370 nm excitation. The afterglow curve of the optimal sample is measured and the effective afterglow time is 333s which has a good match with the theoretically calculated value of 321s. The thermoluminescence spectrum of the optimal phosphor is measured, and the trap depth is calculated to be 0.688 eV according to the Chen's model. Moreover, the long-lasting luminescence process of Eu~(2+) as the luminescence center of Sr_2MgSi_2O_7 matrix is discussed in the energy level diagram.
An optimization method is used to obtain the longest effective afterglow time in the rare earth ions doped long lasting phosphors. The effective afterglow time is defined as the time for the intensity to decays to 10% of the initial intensity. In this paper, we choose the Eu~(2+) and Dy~(3+) coped Sr_2MgSi_2O_7 as the experimental objects.In order to obtain the longest effective afterglow time of Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+) phosphor, the experiment is optimized by quadratic general rotation combination design. The Sr_2MgSi_2O_7:Eu~(2+),Dy~(3+) phosphor are synthesized via a solid-state reaction. The effective afterglow time is obtained by the afterglow decay curve. A binary quadratic regression equation model relating the rare earth ions Eu~(2+)/Dy~(3+) doping concentrations to the effective afterglow time is established. The genetic algorithm is used to solve the equation. The optimal doping concentration of Eu~(2+) and Dy~(3+) are 0.5 mol% and 1.0 mol%, respectively. The theoretical maximum value of effective afterglow time is calculated to be 321 s. The phosphor with the optimal doping concentration Sr_2MgSi_2O_7:0.5mol% Eu~(2+), 1.0 mol% Dy~(3+) are synthesized by the same method as that of synthesizing the frontal samples. The X-ray diffraction shows that the optimal sample prepared is of pure phase, and the doping ions have no effect on the lattice structure of the matrix. A characteristic emission at 465 nm due to the 4f~65d~1-4f~7 transition of Eu~(2+)is observed under the 370 nm excitation. The afterglow curve of the optimal sample is measured and the effective afterglow time is 333s which has a good match with the theoretically calculated value of 321s. The thermoluminescence spectrum of the optimal phosphor is measured, and the trap depth is calculated to be 0.688 eV according to the Chen's model. Moreover, the long-lasting luminescence process of Eu~(2+) as the luminescence center of Sr_2MgSi_2O_7 matrix is discussed in the energy level diagram.
引文
[1]Chang C K,Mao D L,Shen J F,Feng C L 2003 J.Alloy.Compd.348 224
[2]Johnson E J,Kafalas J,Dyes W A 1982 Appl.Phys.Lett.40993
[3]Mei Q F,Tang Y H,Mei X N,Liu H C,Liu Q,Yu Y,Li NY,Gao H 2016 Acta Phys.Sin.65 170701(in Chinese)[梅屹峰,唐远河,梅小宁,刘汉臣,刘骞,余洋,李宁远,高恒2016物理学报65 170701]
[4]Peng L L,Cao S X,Zhao C,Liu B T,Han T,Li F,Li X M2018 Acta Phys Sin.67 187801(in Chinese)[彭玲玲,曹仕秀,赵聪,刘碧桃,韩涛,李凤,黎小敏2018物理学报67 187801]
[5]Liu W Q,Zhao K F,Wu W J,Bao F Q,Zhou B Q 2018 Acta Phys.Sin.65 207801(in Chinese)[刘文全,朝克夫,武文杰,包富泉,周炳卿2018物理学报65 207801]
[6]Lindmayer J 1988 Solid State Technol.31 135
[7]Fan W H,Wang Y C,Xu H,Li D,Wei Z,Yang B Z,Niu LH 1999 J.Appl.Phys.85 451
[8]Zhang Y,Wang B,Liu X,Xiao M 2010 J.Appl.Phys.107103502
[9]Yamashita S A,Ogawa N 1989 Phys.States Solidi B 118 89
[10]Ou Y Y,Zhou W J,Liu C M,Lin L T,Brik G M,Dorenbos P 2018 J.Phys.Chem.C 122 2959
[11]Yan J,Liu C M,Vlieland J,Zhou J B,Dorenbos P,Huang Y,Tao Y,Liang H B 2017 J.Lumin.183 97
[12]Liu F,Yan W,Chuang Y J,Zhen Z,Xie J,Pan Z 2013 Sci.Rep.3 1554
[13]Xu X,He Q,Yan L 2013 J.Alloy.Compd.574 22
[14]Wang J,Ma Q,Wang Y,Shen H,Yuan Q 2017 Nanoscale 96204
[15]Sun J S,Li X P,Wu J L,Li S W,Shi L L,Xu S,Zhang J S,Cheng L H,Chen B J 2017 Acta Phys Sin.66 100201(in Chinese)[孙佳石,李香萍,李树伟,吴金磊,石琳琳,徐赛,张金苏,程丽红,陈宝玖2017物理学报66 100201]
[16]Tian B N 2013 M.S.Thesis(Dalian:Dalian Mar-itime University)(in Chinese)[田碧凝2013硕士学位论文(大连:大连海事大学)]
[17]Ren L Q 2009 Design of Experiment and Optimization(Beijing:Science Press)pp172-185(in Chinese)[任露泉2009试验优化设计与分析(北京:科学出版社)第172-185页]
[18]Wang Z J,Liu H Y,Yang Y,Jiang H F,Duan P G,Li P L,Yang Z P,Guo Q L 2014 Acta Phys.Sin.63 077802(in Chinese)[王志军,刘海燕,杨勇,蒋海峰,段平光,李盼来,杨志平,郭庆林2014物理学报63 077802]
[19]He W,Xue W D,Tang B 2012 The Method of Opti-mal Design of Experiment and Data Analysis(Beijing:Chemical Industry Press)pp185-190(in Chinese)[何为,薛卫东,唐斌2012优化试验设计方法及数据分析(北京:化学工业出版社)第185-190页]
[20]Zhai Z H,Sun J S,Zhang J S,Li X P,Cheng L H,Zhong HY,Li J J,Chen B J 2013 Acta Phys Sin.62 203301(in Chinese)[翟梓会,孙佳石,张金苏,李香萍,程丽红,仲海洋,李晶晶,陈宝玖2013物理学报62 203301]
[21]Cheng S P,Xu H,Wang D Z,Wang G J,Wu Z Z 2007 Rare Metal.Mat.Eng.36 1933(in Chinese)[程仕平,徐慧,王德志,王光君,吴壮志2007稀有金属材料与工程36 1933]
[22]Gao D H,Luo J,Ge M Q 2013 New Chem.Mater.41 30(in Chinese)[高大海,罗军,葛明桥2013化工新型材料41 30]
[23]Xiong W W,Yin C L,Zhang Y,Zhang J L 2009 Chin.J.Mech.Eng-En.22 862
[24]Tan G Z,Zhou D M,Jiang B J,Dioubate M I 2008 J.Cent.South Univ.Technol.15 845
[25]Shi L L,Sun J S,Zhai Z H,Li X P,Zhang J S,Chen B J2014 Acta Photo.Sin.43 1116002(in Chinese)[石琳琳,孙佳石,翟梓会,李香萍,张金苏,陈宝玖2014光子学报431116002]
[26]Wu H,Hu Y,Chen L,Wang X 2011 J.Alloy.Compd.5094304
[27]Chen R 1969 J.Appl.Phys.40 570
[28]Zhang Z,Xu X H,Qiu J B,Zhang X,Yu X 2014 Spetroscopy Spectral Anal.34 1486(in Chinese)[张哲,徐旭辉,邱建备,张新,余雪2014光谱学与光谱分析34 1486]
[29]Qi Z J,Huang W G 2013 Acta Phys Sin.62 197801(in Chinese)[齐智坚,黄维刚2013物理学报62 197801]
[2]Johnson E J,Kafalas J,Dyes W A 1982 Appl.Phys.Lett.40993
[3]Mei Q F,Tang Y H,Mei X N,Liu H C,Liu Q,Yu Y,Li NY,Gao H 2016 Acta Phys.Sin.65 170701(in Chinese)[梅屹峰,唐远河,梅小宁,刘汉臣,刘骞,余洋,李宁远,高恒2016物理学报65 170701]
[4]Peng L L,Cao S X,Zhao C,Liu B T,Han T,Li F,Li X M2018 Acta Phys Sin.67 187801(in Chinese)[彭玲玲,曹仕秀,赵聪,刘碧桃,韩涛,李凤,黎小敏2018物理学报67 187801]
[5]Liu W Q,Zhao K F,Wu W J,Bao F Q,Zhou B Q 2018 Acta Phys.Sin.65 207801(in Chinese)[刘文全,朝克夫,武文杰,包富泉,周炳卿2018物理学报65 207801]
[6]Lindmayer J 1988 Solid State Technol.31 135
[7]Fan W H,Wang Y C,Xu H,Li D,Wei Z,Yang B Z,Niu LH 1999 J.Appl.Phys.85 451
[8]Zhang Y,Wang B,Liu X,Xiao M 2010 J.Appl.Phys.107103502
[9]Yamashita S A,Ogawa N 1989 Phys.States Solidi B 118 89
[10]Ou Y Y,Zhou W J,Liu C M,Lin L T,Brik G M,Dorenbos P 2018 J.Phys.Chem.C 122 2959
[11]Yan J,Liu C M,Vlieland J,Zhou J B,Dorenbos P,Huang Y,Tao Y,Liang H B 2017 J.Lumin.183 97
[12]Liu F,Yan W,Chuang Y J,Zhen Z,Xie J,Pan Z 2013 Sci.Rep.3 1554
[13]Xu X,He Q,Yan L 2013 J.Alloy.Compd.574 22
[14]Wang J,Ma Q,Wang Y,Shen H,Yuan Q 2017 Nanoscale 96204
[15]Sun J S,Li X P,Wu J L,Li S W,Shi L L,Xu S,Zhang J S,Cheng L H,Chen B J 2017 Acta Phys Sin.66 100201(in Chinese)[孙佳石,李香萍,李树伟,吴金磊,石琳琳,徐赛,张金苏,程丽红,陈宝玖2017物理学报66 100201]
[16]Tian B N 2013 M.S.Thesis(Dalian:Dalian Mar-itime University)(in Chinese)[田碧凝2013硕士学位论文(大连:大连海事大学)]
[17]Ren L Q 2009 Design of Experiment and Optimization(Beijing:Science Press)pp172-185(in Chinese)[任露泉2009试验优化设计与分析(北京:科学出版社)第172-185页]
[18]Wang Z J,Liu H Y,Yang Y,Jiang H F,Duan P G,Li P L,Yang Z P,Guo Q L 2014 Acta Phys.Sin.63 077802(in Chinese)[王志军,刘海燕,杨勇,蒋海峰,段平光,李盼来,杨志平,郭庆林2014物理学报63 077802]
[19]He W,Xue W D,Tang B 2012 The Method of Opti-mal Design of Experiment and Data Analysis(Beijing:Chemical Industry Press)pp185-190(in Chinese)[何为,薛卫东,唐斌2012优化试验设计方法及数据分析(北京:化学工业出版社)第185-190页]
[20]Zhai Z H,Sun J S,Zhang J S,Li X P,Cheng L H,Zhong HY,Li J J,Chen B J 2013 Acta Phys Sin.62 203301(in Chinese)[翟梓会,孙佳石,张金苏,李香萍,程丽红,仲海洋,李晶晶,陈宝玖2013物理学报62 203301]
[21]Cheng S P,Xu H,Wang D Z,Wang G J,Wu Z Z 2007 Rare Metal.Mat.Eng.36 1933(in Chinese)[程仕平,徐慧,王德志,王光君,吴壮志2007稀有金属材料与工程36 1933]
[22]Gao D H,Luo J,Ge M Q 2013 New Chem.Mater.41 30(in Chinese)[高大海,罗军,葛明桥2013化工新型材料41 30]
[23]Xiong W W,Yin C L,Zhang Y,Zhang J L 2009 Chin.J.Mech.Eng-En.22 862
[24]Tan G Z,Zhou D M,Jiang B J,Dioubate M I 2008 J.Cent.South Univ.Technol.15 845
[25]Shi L L,Sun J S,Zhai Z H,Li X P,Zhang J S,Chen B J2014 Acta Photo.Sin.43 1116002(in Chinese)[石琳琳,孙佳石,翟梓会,李香萍,张金苏,陈宝玖2014光子学报431116002]
[26]Wu H,Hu Y,Chen L,Wang X 2011 J.Alloy.Compd.5094304
[27]Chen R 1969 J.Appl.Phys.40 570
[28]Zhang Z,Xu X H,Qiu J B,Zhang X,Yu X 2014 Spetroscopy Spectral Anal.34 1486(in Chinese)[张哲,徐旭辉,邱建备,张新,余雪2014光谱学与光谱分析34 1486]
[29]Qi Z J,Huang W G 2013 Acta Phys Sin.62 197801(in Chinese)[齐智坚,黄维刚2013物理学报62 197801]