Abstract
We have studied the enhancement factors (EF) in Surface Enhanced Raman Scattering (SERS) substrates prepared with self assembled ZnO nanorod arrays and Au nanocrystals. The ZnO/Au composite nanoarrays present experimental EF values as high as ∼107 for detection of Rhodamine 6G (R6G) using an excitation wavelength of 633 nm. We have study the EF via numerical simulations of a single ZnO/Au composite nanorod using a FDTD algorithm. Our results indicate that the coupling between the photonic wave guiding in the ZnO nanorod and the plasmonic resonance in the Au nanocrystals plays a significant role in the observed EF and need to be considered to fully understand and optimize the development of high efficiency, reproducible, and stable SERS substrates. ©2010 IEEE.
| Original language | English |
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| Title of host publication | Conference Proceedings - The 8th International Conference on Advanced Semiconductor Devices and Microsystems, ASDAM 2010 |
| Pages | 271-274 |
| DOIs | |
| Publication status | Published - 2010 |
| Event | 18th International Conference on Advanced Semiconductor Devices and Microsystems, ASDAM 2010 - Smolenice, Slovakia Duration: 25 Oct 2010 → 27 Oct 2010 |
Conference
| Conference | 18th International Conference on Advanced Semiconductor Devices and Microsystems, ASDAM 2010 |
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| Place | Slovakia |
| City | Smolenice |
| Period | 25/10/10 → 27/10/10 |