Abstract
In this work, thermal stabilities of electrochemically prepared surface-enhanced Raman scattering (SERS)- active gold and silver substrates were first investigated. The results indicate that the SERS enhancement capabilities of gold and silver substrates are seriously destroyed at temperatures higher than 200 and 125 °C, respectively. Further experiments reveal that the decrease in SERS enhancement capability mainly comes from the decrease of the chemical (CHEM) enhancement for gold substrates. However, the decrease in SERS enhancement capability can be ascribed to the decreases of both the electromagnetic (EM) enhancement and the chemical (CHEM) enhancement for silver substrates.
| Original language | English |
|---|---|
| Pages (from-to) | 10570-10574 |
| Number of pages | 5 |
| Journal | Journal of Physical Chemistry C |
| Volume | 111 |
| Issue number | 28 |
| DOIs | |
| Publication status | Published - Jul 19 2007 |
| Externally published | Yes |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- General Energy
- Surfaces, Coatings and Films
- Physical and Theoretical Chemistry