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本文采用共烧结工艺将纳米Ag颗粒引入Yb3+, Er3+共掺的NaYF4上转换材料中, 利用X射线衍射及扫描电子显微镜技术对制备的NaYF4材料进行结构特性和表面形貌的表征, 通过吸收谱及荧光光谱测试技术对NaYF4材料光吸收及光发射特性进行表征. 通过对纳米Ag颗粒引入量的优化, 获得了Yb3+, Er3+共掺的NaYF4上转换材料荧光发射峰的增强, 300—800 nm全光谱范围内增益达28%, 在544 nm处获得最大增益55%, 具有显著的荧光增强效果. 同时分析了不同数量纳米Ag颗粒的引入对NaYF4材料吸收谱及光致发光特性影响, 指出了表面等离子激元的光猝灭及共振吸收增强作用机理.Silver nanoparticles are added into Yb3+ and Er3+ co-doped NaYF4 up-conversion materials using co-sintering process. Changes in diffraction intensity and surface morphology are inspected by X-ray diffraction and scanning electron microscope measurement, respectively. The optical absorption and Photoluminescence spectra are measured using UV/visible spectrophotometer and photoluminescence measurements. By optimizing the quantity of Ag nanoparticles, we obtain obvious enhancements of the photoluminescence intensities of Yb3+ and Er3+ co-doped NaYF4 materials, which shows a 28% enhancement in 300—800 nm wavelength range and a 55% enhancement at 544 nm. Different mechanisms are proposed for light quenching and surface plasmon enhanced absorption with Ag nanoparticles adjustment.
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Keywords:
- Ag nanoparticles /
- surface plasmon /
- resonance absorption /
- up-conversion materials
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[23] Xu H X, Aizpurua J, Käll M, Apell P 2000 Phys. Rev. E 62 4318
[24] Bozhevolnyi S I,Beermann J, Coello V 2003 Phys. Rev. Lett. 90 197403
[25] Maier S A,Atwater H A 2005 J. Appl. Phys. 98 011101
[26] Feng W,Sun L D,Yan C H 2009 Chem. Commun. 42 4393
[27] Bardhan R,Grady N K, Cole J R, Joshi A , Halas N J 2009 ACS Nano 3 744
[28] Zhang H, Li Y J, Ivanov I A, Qu Y Q, Huang Y, Duan X F 2010 Angew. Chem., Int. Ed. 49 2865
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[1] Courrol L C, Ranieri I M, Baldochi S L, Samad R E, Freitas A Z, Gomes L, Vieira N D 2007 Journal of Luminescence 121 474
[2] Heumann E, Bär S, Rademaker K, Huber G, Butterworth S, Diening A, Seelert W 2006 Appl. Phys. Lett. 88 061108
[3] Downing E, Hesselink L, Ralston J, Macfarlane R 1996 Science 273 1185
[4] Li Z, Zhang Y 2006 Angew. Chem. Int. Ed 45 7732
[5] Saxena V N 1983 Indian J. Pure Appl. Phys. 21(5) 306
[6] Gibart P, Auzel F, Guillaume J C, Zahraman K 1995 13th EPVSEC (Nice France) p85
[7] Aisaka T,Fujii M,Hayashi S 2008 Appl. Phys. Lett.92 132105
[8] Tao A,Sinsermsuksakul P,Yang P 2007 Nat. Nanotechnol 2 435
[9] Raether H 1988 Surface Plasmons on Smooth and Rough Surfaces and on Grating. Springer Tracts in Modern Physics Vol.88, Springer, Berlin.
[10] Shlager K L, Schneider J B 1995 IEEE Antennas Propagation Magazine 37 No.4
[11] Zhang H, Xu D, Huang Y, Duan X F 2011 Chem. Commun. 47 979
[12] Wei H Y, Lin J, Feng Z B, Li D W, Ma Y, Huang W H 2010 Materials Science and Engineering B 172 321
[13] Wang Y H,Zhou J, Wang T 2007 Chinese Journal Of Inorganic Chemistry 23 No.8
[14] Jin X, Zhang X D, Lei Z F, Xiong S Z, Song F, Zhao Y 2008 Acta Phys. Sin. 57 4580 (in Chinese) [金鑫, 张晓丹, 雷志芳, 熊绍珍, 宋峰, 赵颖 2008 物理学报 57 4580]
[15] Auzel F 2004 Chem. Rev. 104 139
[16] Huang Q, Wang J, Cao L R, Sun J, Zhang X D,Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. 58 1980 (in Chinese) [黄茜, 王京, 曹丽冉, 孙建, 张晓丹, 耿卫东, 熊绍珍, 赵颖 2009 物理学报 58 1980]
[17] Huang Q, Zhang X D, Ji W W, Wang J, Mi J, Li L N, Sun J, Geng WD, Geng X H, Zhao Y 2010 Acta Phys. 59 536 (in Chinese) [黄茜, 张晓丹, 纪伟伟, 王京, 倪牮, 李林娜, 孙建, 耿卫东, 耿新华, 赵颖 2010 物理学报 59 536]
[18] Wang L Y, Li Y D 2006 Chem. Commun. 42 2557
[19] Liu L S, Lv S C, Sun J T 2010 Acta Phys. Sin. 59 6637 (in Chinese) [刘丽莎, 吕树臣, 孙江亭 2010 物理学报 59 6637]
[20] Li C R, Xu W, Dong B, Li S F, Ding J H, Cheng Y Q, Yin H T 2010 Chin. Phys. B 19 047901
[21] Hao E,Schatz G C 2004 Chem. Phys. 120 357
[22] Kneipp K, Kneipp H,Itzkan I, Dasari R R, FeldMS 2002 J. Phys.: Condens. Matter 14 R597
[23] Xu H X, Aizpurua J, Käll M, Apell P 2000 Phys. Rev. E 62 4318
[24] Bozhevolnyi S I,Beermann J, Coello V 2003 Phys. Rev. Lett. 90 197403
[25] Maier S A,Atwater H A 2005 J. Appl. Phys. 98 011101
[26] Feng W,Sun L D,Yan C H 2009 Chem. Commun. 42 4393
[27] Bardhan R,Grady N K, Cole J R, Joshi A , Halas N J 2009 ACS Nano 3 744
[28] Zhang H, Li Y J, Ivanov I A, Qu Y Q, Huang Y, Duan X F 2010 Angew. Chem., Int. Ed. 49 2865
[29] Schietinger S, Aichele T, Wang H Q, Nann T, Benson O 2010 Nano Lett. 10 134
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