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Combined Ag nanoparticles with Al2O3 dielectric layer structure have been designed for molecular detection using surface enhanced Raman scattering. Optical absorption spectra studies reveal dipole plasmon resonance absorption property, which show regular red shift with the increasing of the thickness of Al2O3 layer. By use the combined structure as SERS substrates and rhodamine 6G as a test molecule, the results in this paper show that the scattering at 1064 nm increases with the thickness of Al2O3 dielectric layer which leads to the surrounding dielectric constant of Ag nanoparticles to increase.
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Keywords:
- silver nanoparticles /
- resonance absorption /
- surface enhanced Raman scattering /
- dielectric constant
[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 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 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 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
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[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 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 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 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
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