Investigation of static SIMS signal enhancement by halide acid substrate treatment
✍ Scribed by Choi, Bernard K.; Gusev, Arkady I.; Houalla, Marwan; Hercules, David M.
- Publisher
- John Wiley and Sons
- Year
- 2000
- Tongue
- English
- Weight
- 266 KB
- Volume
- 29
- Category
- Article
- ISSN
- 0142-2421
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✦ Synopsis
The enhancement of the (M Y H) Y static secondary ion mass spectrometry (static SIMS) signal intensity resulting from pretreatment of silver sample substrates with aqueous halide acids was studied. Surface coverage experiments with silver halide surfaces prepared by aqueous halide acid treatment and electrodeposition indicated that the presence of silver halides alone could not account for the observed enhancement. Deuterium exchange studies showed that protons are adsorbed on the substrate during the acid treatment. It is likely that these protons are responsible for the improvement of static SIMS signal intensity by promoting the formation of (M Y H) Y species.