Surface-Enhanced Raman Scattering from Individual Au Nanoparticles on Au Films
Source abstract
Abstract
We investigated the effect of optical thick metal films on the surface-enhanced Raman scattering (SERS) activity of individual Au nanoparticle (NP) monomers and dimers. The film presence is revealed to be positive for the SERS activity of individual NP monomers, while it is not always positive for the electromagnetic enhancement at hot spots for SERS of the dimer, which is explained well by our numerical simulations. The polarized SERS signals from the NP dimer are elucidated well in terms of the plasmon hybridization of the dimer. SERS contributions both from individual NP surfaces and the junction between the NP and its supporting substrate were discussed as well.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gold and Silver Nanoparticles Synthesis and Applications · Nanocluster Synthesis and Applications · Laser-Ablation Synthesis of Nanoparticles
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References (19)
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1. Yoon I, Kang T, Choi W, Kim J, Yoo Y, Joo S, Park Q, Ihee H, Kim B (2009) Single nanowire on a film as an efficient SERS-active platform. J Am Chem Soc 131:758–76210.1021/ja807455s ↗
2. Braun G, Lee SJ, Dante M, Nguyen TQ, Moskovits M, Reich N (2007) Surface-enhanced Raman spectroscopy for DNA detection by nanoparticle assembly onto smooth metal films. J Am Chem Soc 139:6378–637910.1021/ja070514z ↗
3. Driskell JD, Lipert RJ, Porter MD (2006) Labeled gold nanoparticles immobilized at smooth metallic substrates: systematic investigation of surface plasmon resonance and surface-enhanced Raman scattering. J Phys Chem B 110:17444–1745110.1021/jp0636930 ↗
4. Tang J, Ponizovskaya EV, Bratkovsky AM, Stewart DR, Li ZY, Williams RS (2008) Metallic nanocrystals near ultrasmooth metallic films for surface-enhanced Raman scattering application. Nanotechnology 19:41570210.1088/0957-4484/19/41/415702 ↗
5. Orendorff CJ, Gole A, Sau TK, Murphy CJ (2005) Surface-enhanced Raman spectroscopy of self-assembled monolayers: sandwich architecture and nanoparticle shape dependence. Anal Chem 77:3261–326610.1021/ac048176x ↗
6. Park WH, Ahn SH, Kim ZH (2008) Surface-enhanced Raman scattering from a single nanoparticle–plane junction. Chemphyschem 9:2491–249410.1002/cphc.200800563 ↗
7. Veshapidz G, Trachy ML, Shah MH, Depaola BD (2006) Reducing the uncertainty in laser beam size measurement with a scanning edge method. Appl Opt 45:8197–819910.1364/AO.45.008197 ↗
8. Du CL, Kasim J, You YM, Shi DN, Shen ZX (2011) Enhancement of Raman scattering by individual dielectric microspheres. J Raman Spectrosc 42:145–14810.1002/jrs.2684 ↗
9. You YM, Yu T, Kasim J, Song H, Fan XF, Ni ZH, Cao LZ, Jiang H, Shen DZ, Kuo JL, Shen ZX (2008) Visualization and investigation of Si-C covalent bonding of single carbon nanotube grown on silicon substrate. Appl Phys Lett 93:10311110.1063/1.2980402 ↗
10. Wei H, Hakanson U, Yang ZL, Höök F, Xu HX (2008) Individual nanometer hole–particle pairs for surface-enhanced Raman scattering. Small 4:1296–130010.1002/smll.200701135 ↗
11. Talley CE, Jackson JB, Oubre C, Grady NK, Hollars CW, Lane SM, Huser TR, Nordlander P, Halas NJ (2005) Surface-enhanced Raman scattering from individual Au nanoparticles and nanoparticle dimer substrates. Nano Lett 5:1569–157410.1021/nl050928v ↗
12. Okamoto T, Yamaguchi I (2003) Optical absorption study of the surface plasmon resonance in gold nanoparticles immobilized onto a gold substrate by self-assembly technique. J Phys Chem B 107:10321–1032410.1021/jp034537l ↗
13. Du CL, You YM, Kasim J, Hu HL, Zhang XJ, Shen ZX (2010) Near-field coupling effect between individual Au nanospheres and their supporting SiO2/Si substrate. Plasmonics 5:105–10910.1007/s11468-009-9122-2 ↗
14. Itoh T, Hashimoto K, Ozaki Y (2003) Polarization dependences of surface plasmon bands and surface-enhanced Raman bands of single Ag nanoparticles. Appl Phys Lett 83:2274–227610.1063/1.1604188 ↗
15. Li WY, Camargo PHC, Lu XM, Xia YN (2009) Dimers of silver nanospheres: facile synthesis and their use as hot spots for surface-enhanced Raman scattering. Nano Lett 9:485–49010.1021/nl803621x ↗
16. Johnson PB, Christy RW (1972) Optical constants of noble metals. Phys Rev B 6:4370–473910.1103/PhysRevB.6.4370 ↗
17. Palik ED (1991) Handbook of optical constants of solids. Academic, New York
18. Nordlander P, Oubre C, Prodan E, Li K, Stockman MI (2004) Plasmon hybridizaton in nanoparticle dimers. Nano Lett 4:899–90310.1021/nl049681c ↗
19. Fang Y, Seong NH, Dlott DD (2008) Measurement of the distribution of site enhancements in surface-enhanced Raman scattering. Science 321:388–39210.1126/science.1159499 ↗