-
Al2O3介质薄膜与纳米Ag颗粒构成的复合结构,被应用于表面增强Raman散射探测实验中,其中Al2O3介质薄膜对纳米Ag颗粒的吸收谱及增强Raman散射光谱的影响被特别关注.该复合结构的光学特性表征出纳米Ag颗粒的偶极振荡特性.从光吸收谱中可以看到,其共振吸收谱随Al2O3介质薄膜厚度增加而在整个谱域上发生红移,表明纳米Ag颗粒的周围介电常数随Al2O3介质薄膜厚度的增加而增大.采用罗丹明6G作为探针原子,6个Raman特征峰的平均增益值作为表征表面增强Raman散射衬底增益程度的量度.实验结果表明,Al2O3介质薄膜层的引入提高了纳米Ag颗粒的衬底介电常数,并引起了散射共振的增强,从而使表面增强Raman散射强度提高.
-
关键词:
- 纳米Ag薄膜 /
- 共振吸收 /
- 表面增强Raman散射 /
- 介电常数
[1] [1]Mishra Y K, Mohapatra S, Singhal R, Avasthi D K, Agarwal D C, Ogale S B 2008 Appl. Phys. Lett. 92 043107
[2] [2]Huang Q, Zhang X D, Wang S, Cao L R, Sun J, Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. Sin. 58 2731 (in Chinese) [黄茜、张晓丹、王烁、曹丽冉、孙建、耿卫东、熊绍珍、赵颖 2009 物理学报 58 2731]
[3] [3]Xu G, Huang C M, Tazawa M, Jin P, Chen L H 2009 Opt. Comm. 282 896
[4] [4]Wang T J, Lin W S 2006 Appl. Phys. Lett. 89 173903
[5] [5]Haes A J, Zou S, Schatz G C, van Duyne R P 2004 J. Phys. Chem. B 108 109
[6] [6]Nie S, Emory S R 1997 Science 275 1102
[7] [7]Zhang Y, Gu C, Schwartzberg A M, Zhang J Z 2005 Appl. Phys. Lett. 87 123105
[8] [8]Feldstein M J, Keating C D, Liau Y H, Natan M J, Scherer N F 1997 J. Am. Chem. Soc. 119 6638
[9] [9]Sajan D, Joe I H, Jayakumar V S 2006 J. Raman Spectrosc. 37 508
[10] ]Wu Q S, Zhao Y, Zhang C B, Li F 2005 Acta Phys. Sin. 54 1452 (in Chinese) [吴青松、赵岩、张彩碚、李峰 2005 物理学报 54 1452
[11] ]Prokes S M, Alexson D A, Glembocki O J, Park H D, Rendell R W 2009 Appl. Phys. Lett. 94 093105
[12] ]Imura K, Okamoto H, Hossain M K, Kitajima M 2006 Nano Lett. 6 2173
[13] ]Fang J X, Yi Y, Ding B J, Song X P 2008 Appl. Phys. Lett. 92 131115
[14] ]Weimer W A, Dyer M J 2001 Appl. Phys. Lett. 79 3164
[15] ]Meier M, Wokaun A, Vo-Dinh T 1985 J. Phys. Chem. 89 1843
[16] ]Huang Q, Wang J, Cao L R, Sun J, Zhang X D, Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. Sin. 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] ]Stair P C 2001 Curr. Opin. Solid St. M. 5 365
[18] ]Mie G 1908 Ann. Phys. 25 377
[19] ]Kelly K L, Coronado E, Zhao L L, Schatz G C 2003 J. Phys. Chem. B 107 668
[20] ]Link S, El-Sayed M A 1999 J. Phys. Chem. B 103 4212
[21] ]Xu G, Chen Y, Tazawa M, Jin P 2006 Appl. Phys. Lett. 88 043114
[22] ]Orendorff C J, Gole A, Sau T K, Murphy C J 2005 Anal. Chem. 77 3261
[23] ]Xu H 2004 Appl. Phys. Lett. 85 5980
[24] ]Prokes S M, Glembocki O J, Rendell R W, Ancona M G 2007 Appl. Phys. Lett. 90 093105
-
[1] [1]Mishra Y K, Mohapatra S, Singhal R, Avasthi D K, Agarwal D C, Ogale S B 2008 Appl. Phys. Lett. 92 043107
[2] [2]Huang Q, Zhang X D, Wang S, Cao L R, Sun J, Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. Sin. 58 2731 (in Chinese) [黄茜、张晓丹、王烁、曹丽冉、孙建、耿卫东、熊绍珍、赵颖 2009 物理学报 58 2731]
[3] [3]Xu G, Huang C M, Tazawa M, Jin P, Chen L H 2009 Opt. Comm. 282 896
[4] [4]Wang T J, Lin W S 2006 Appl. Phys. Lett. 89 173903
[5] [5]Haes A J, Zou S, Schatz G C, van Duyne R P 2004 J. Phys. Chem. B 108 109
[6] [6]Nie S, Emory S R 1997 Science 275 1102
[7] [7]Zhang Y, Gu C, Schwartzberg A M, Zhang J Z 2005 Appl. Phys. Lett. 87 123105
[8] [8]Feldstein M J, Keating C D, Liau Y H, Natan M J, Scherer N F 1997 J. Am. Chem. Soc. 119 6638
[9] [9]Sajan D, Joe I H, Jayakumar V S 2006 J. Raman Spectrosc. 37 508
[10] ]Wu Q S, Zhao Y, Zhang C B, Li F 2005 Acta Phys. Sin. 54 1452 (in Chinese) [吴青松、赵岩、张彩碚、李峰 2005 物理学报 54 1452
[11] ]Prokes S M, Alexson D A, Glembocki O J, Park H D, Rendell R W 2009 Appl. Phys. Lett. 94 093105
[12] ]Imura K, Okamoto H, Hossain M K, Kitajima M 2006 Nano Lett. 6 2173
[13] ]Fang J X, Yi Y, Ding B J, Song X P 2008 Appl. Phys. Lett. 92 131115
[14] ]Weimer W A, Dyer M J 2001 Appl. Phys. Lett. 79 3164
[15] ]Meier M, Wokaun A, Vo-Dinh T 1985 J. Phys. Chem. 89 1843
[16] ]Huang Q, Wang J, Cao L R, Sun J, Zhang X D, Geng W D, Xiong S Z, Zhao Y 2009 Acta Phys. Sin. 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] ]Stair P C 2001 Curr. Opin. Solid St. M. 5 365
[18] ]Mie G 1908 Ann. Phys. 25 377
[19] ]Kelly K L, Coronado E, Zhao L L, Schatz G C 2003 J. Phys. Chem. B 107 668
[20] ]Link S, El-Sayed M A 1999 J. Phys. Chem. B 103 4212
[21] ]Xu G, Chen Y, Tazawa M, Jin P 2006 Appl. Phys. Lett. 88 043114
[22] ]Orendorff C J, Gole A, Sau T K, Murphy C J 2005 Anal. Chem. 77 3261
[23] ]Xu H 2004 Appl. Phys. Lett. 85 5980
[24] ]Prokes S M, Glembocki O J, Rendell R W, Ancona M G 2007 Appl. Phys. Lett. 90 093105
引用本文: |
Citation: |
计量
- 文章访问数: 4693
- PDF下载量: 1300
- 被引次数: 0