Joshy F. John, Shannon Mahurin, Sheng Dai and Michael J. Sepaniak Use of atomic layer deposition to improve the stability of silver substrates for in situ, high-temperature SERS measurements Journal of Raman Spectroscopy 41
The uniform deposition of a thin, protective alumina film by atomic layer deposition onto a SERS-active silver substrate improves the temporal stability of the substrate increasing the usable shelf life. In addition, the coating enables SERS measurements at higher temperatures compared to bare silver films, which is useful in a variety of applications. As a demonstration, the coated silver was used to measure the dehydration of calcium nitrate tetrahydrate at high temperature.
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