Photo luminescent properties of porous Si-O-C(-H) amorphous at an early stage of pyrolysis

Abstract

Silicone resin micro particles in an averaged diameter of 2 micrometer were decarbonized in a controlled atmosphere in a temperature range of 650 - 900 C. Ceramization process in this temperature range was investigated in terms of mass loss, specific surface area and IR spectroscopy. PL spectra was observed by He-Cd laser excitation. Fomration of a PL center with a peak at 410 nm with unsymmetrical spectrum feature at the early stage of the decarbonization is indicated.