Surface Enhanced Raman Spectroscopy of a Au@Au Core–Shell Structure Containing a Spiky Shell
| العنوان: | Surface Enhanced Raman Spectroscopy of a Au@Au Core–Shell Structure Containing a Spiky Shell |
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| المؤلفون: | Jie He, Zohre Gorunmez, Laura B. Sagle, Ian Bruzas, Thomas L. Beck, Debrina Jana |
| المصدر: | The Journal of Physical Chemistry C. 120:20814-20821 |
| بيانات النشر: | American Chemical Society (ACS), 2016. |
| سنة النشر: | 2016 |
| مصطلحات موضوعية: | Infrared, Chemistry, Nuclear Theory, Shell (structure), Nanotechnology, 02 engineering and technology, Surface-enhanced Raman spectroscopy, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Molecular physics, 0104 chemical sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Core shell, Core (optical fiber), General Energy, Extinction (optical mineralogy), Physics::Atomic and Molecular Clusters, Molecule, Physical and Theoretical Chemistry, 0210 nano-technology |
| الوصف: | We have synthesized a novel Au@Au core–shell structure containing a spiky shell and characterized the surface enhanced Raman spectroscopy (SERS) of such a structure. The experimental and calculated SERS intensities for probe molecules residing between the core and shell are considerably higher in this structure containing a spiky shell, when compared to the smooth shell counterpart. Moreover, the SERS intensities for probe molecules residing on the outside of the spiky core–shell structure are comparable to those measured for the dye residing between the core and shell and similar to that of a gold nanostar. Finite-difference time-domain calculations in combination with hybridization theory are able to predict the extinction spectral features and show that the field enhancements are considerably larger than the smooth core–shell structure throughout the visible and infrared regions of the spectrum. This spiky Au@Au core–shell system shows excellent promise as a next generation SERS nanotag, in which encap... |
| تدمد: | 1932-7455 1932-7447 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::31228c3761a2ff777a090776ddda5f23 https://doi.org/10.1021/acs.jpcc.6b02135 |
| رقم الأكسشن: | edsair.doi...........31228c3761a2ff777a090776ddda5f23 |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 19327455 19327447 |
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