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Theory of SERS enhancement : general discussion

Graham, Duncan and Goodacre, Roy and Arnolds, Heike and Masson, Jean-Francois and Schatz, George and Baumberg, Jeremy and Kim, Dong-Ho and Aizpurua, Javier and Lum, William and Silvestri, Alessandro and de Nijs, Bart and Xu, Yikai and Di Martino, Giuliana and Natan, Michael and Schlücker, Sebastian and Wuytens, Pieter and Bruzas, Ian and Kuttner, Christian and Hardy, Mike and Chikkaraddy, Rohit and Martín Sabanés, Natalia and Delfino, Ines and Dawson, Paul and Gawinkowski, Sylwester and Bontempi, Nicolò and Mahajan, Sumeet and Reich, Stephanie and Hourahine, Ben and Bell, Steven and Królikowska, Agata and Porter, Marc and Keeler, Alex and Kamp, Marlous and Fountain, Augustus and Fasolato, Claudia and Giorgis, Fabrizio and Otero, Juan C and Matricardi, Cristiano and Van Duyne, Richard and Lombardi, John and Deckert, Volker and Velleman, Leonora (2017) Theory of SERS enhancement : general discussion. Faraday Discussions, 205. pp. 173-211. ISSN 1359-6640

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Abstract

Rohit Chikkaraddy opened the discussion of the Introductory Lecture: Regarding quantifying the chemical enhancement, you showed a systematic change in the SERS enhancement for halide substituted molecules due to charge transfer from the metal. Is the extra enhancement due to an inherent increase in the Raman cross-section of the molecule? How do you go about referencing, as the charge transfer changes the vibrational frequency?