Investigation of Surface Plasmon Resonance in Au Nanoparticles Deposited on ZnO:Al Thin Films

Pau, J. L., Abad, J. M., Hernandez, M. J., Cervera, M., Ruiz, E., Nuñez, C. , Lorenzo, E. and Piqueras, J. (2011) Investigation of Surface Plasmon Resonance in Au Nanoparticles Deposited on ZnO:Al Thin Films. In: 8th Spanish Conference on Electron Devices, CDE'2011, Palma de Mallorca, Spain, 8-11 Feb 2011, ISBN 9781424478651 (doi: 10.1109/SCED.2011.5744180)

Abstract

Spectroscopic ellipsometry in external reflection (ER) and total internal reflection (TIR) modes is used to characterize surface plasmon resonance in Au nanoparticles (AuNPs) deposited on Al-doped ZnO films via surface thiolation. ER ellipsometry exhibits high sensitivity to the alkanethiol layer as well as to localized surface plasmons at energies around 2.3 eV. TIR ellipsometry reveals resonances at higher energies (2.9-3.35 eV), which are dependent on the environment used: air or deionized water. Coupling between charge dipoles inside the AZO layer and surface plasmons may account for the existence of those resonances

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Garcia Nunez, Dr Carlos
• Authors: Pau, J. L., Abad, J. M., Hernandez, M. J., Cervera, M., Ruiz, E., Nuñez, C., Lorenzo, E., and Piqueras, J.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISBN: 9781424478651