PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
When entrapping indicators in sol-gel materials for optical sensing purposes, one should be careful to take into account that changes in the cage properties, caused by variations in the synthetic procedures, might affect the performance of the dopant. We show - for SiO2 sol-gel entrapped pH and polarity indicators - that such variations are brought about by changing the water-silane r-ratio preparation conditions and by changing the environmental humidity to which the material is exposed. The observations are interpreted in terms of changes in the acidity and polarity of the cage surface.
Claudio Rottman andDavid Avnir
"Effects of water/silane r-ratio and humidity on properties of sol-gel-entrapped indicators", Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); https://doi.org/10.1117/12.384334
ACCESS THE FULL ARTICLE
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.
The alert did not successfully save. Please try again later.
Claudio Rottman, David Avnir, "Effects of water/silane r-ratio and humidity on properties of sol-gel-entrapped indicators," Proc. SPIE 3943, Sol-Gel Optics V, (2 May 2000); https://doi.org/10.1117/12.384334