Title |
Out-diffused silver island films for surface-enhanced Raman scattering protected with TiO2 films using atomic layer deposition
|
---|---|
Published in |
Discover Nano, August 2014
|
DOI | 10.1186/1556-276x-9-398 |
Pubmed ID | |
Authors |
Semen Chervinskii, Antti Matikainen, Alexey Dergachev, Andrey A Lipovskii, Seppo Honkanen |
Abstract |
We fabricated self-assembled silver nanoisland films using a recently developed technique based on out-diffusion of silver from an ion-exchanged glass substrate in reducing atmosphere. We demonstrate that the position of the surface plasmon resonance of the films depends on the conditions of the film growth. The resonance can be gradually shifted up to 100 nm towards longer wavelengths by using atomic layer deposition of titania, from 3 to 100 nm in thickness, upon the film. Examination of the nanoisland films in surface-enhanced Raman spectrometry showed that, in spite of a drop of the surface-enhanced Raman spectroscopy (SERS) signal after the titania spacer deposition, the Raman signal can be observed with spacers up to 7 nm in thickness. Denser nanoisland films show slower decay of the SERS signal with the increase in spacer thickness. |
X Demographics
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 1 | 100% |
Demographic breakdown
Type | Count | As % |
---|---|---|
Members of the public | 1 | 100% |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 23 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Ph. D. Student | 9 | 39% |
Student > Bachelor | 2 | 9% |
Researcher | 2 | 9% |
Professor | 2 | 9% |
Student > Doctoral Student | 1 | 4% |
Other | 3 | 13% |
Unknown | 4 | 17% |
Readers by discipline | Count | As % |
---|---|---|
Physics and Astronomy | 9 | 39% |
Materials Science | 4 | 17% |
Chemistry | 2 | 9% |
Agricultural and Biological Sciences | 1 | 4% |
Chemical Engineering | 1 | 4% |
Other | 2 | 9% |
Unknown | 4 | 17% |