Critical importance of nanogaps between metal nanoparticles and metal substrates in surface enhanced Raman scattering

2013 ◽  
Author(s):  
Masayuki Futamata ◽  
Saori Handa ◽  
Hiroki Suzuki ◽  
Hayato Chiba
Keyword(s):  
Raman Scattering ◽  
Metal Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Critical Importance ◽  
Metal Substrates ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Finite-Size Effects and Surface-Enhanced Raman Scattering in Noble-Metal Nanoparticles

2004 ◽  
Vol 818 ◽  
Author(s):  
Vitaliy N. Pustovit ◽  
Tigran V. Shahbazyan
Keyword(s):  
Raman Scattering ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Finite Size ◽  
Surface Enhanced Raman Scattering ◽  
Noble Metal Nanoparticles ◽  
Raman Signal ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

AbstractWe study the role of a strong electron confinement on the surface-enhanced Raman scattering from molecules adsorbed on small noble-metal nanoparticles. We describe a novel enhancement mechanism which originates from the different effect that confining potential has on s-band and d-band electrons. We demonstrate that the interplay between finite-size and screening efects in the nanoparticle surface layer leads to an enhancement of the surface plasmon local field acting on a molecule located in a close proximity to the metal surface. Our calculations show that the additional enhancement of the Raman signal is especially strong for small nanometer-sized nanoparticles.

Research of Surface-Enhanced Raman Scattering of Trinitrophenol Based on Different Metal Nanoparticles

2015 ◽  
Vol 52 (10) ◽  
pp. 103005
Author(s):  
张卓 Zhang Zhuo ◽  
梁晓会 Liang Xiaohui ◽  
何春泽 He Chunze ◽  
张辰 Zhang Chen ◽  
肖瑞 Xiao Rui ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Metal Nanoparticles ◽  
Surface Enhanced Raman Scattering ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering

Monodisperse Noble-Metal Nanoparticles and Their Surface Enhanced Raman Scattering Properties

2008 ◽  
Vol 20 (22) ◽  
pp. 6939-6944 ◽  
Author(s):  
Chengmin Shen ◽  
Chao Hui ◽  
Tianzhong Yang ◽  
Congwen Xiao ◽  
Jifa Tian ◽  
...  
Keyword(s):  
Raman Scattering ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Surface Enhanced Raman Scattering ◽  
Noble Metal Nanoparticles ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering
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