THE LUMINESCENCE PROPERTIES OF PYRENE IN SILICA XEROGEL

摘要

Pyrene (Py) was doped in silica xerogel by sol-gel process, and the spectroscopic properties of Py in xerogel and in ethanol solution were studied comparatively. Doping with Py in silica xerogel can increase the quenching concentration greatly, and thus increase the monomer fluorescence intensity of Py by a factor of approximately 20 with respect to that in ethanol solution. These changes can be explained by the glass network structure theory.